You are to be congratulated for ‘looking before you leap’, rather than falling head over heels in love and disregarding all else as so many couples do.
Yes, it can work. If you were a woman, and you were interested in a man 4 years your senior, you wouldn’t be asking the question.
Four years, at the ages you are both at, is very workable. Just take it slow, though…no need to rush.
I can tell you from my experience (same age 24, but I was 21, so it was three years) that there are things to do together and the time can pass nicely, although the difference is noticeable. What I’m trying to say is that the difference won’t disappear. It’s there and you can either take it or not. Problems are when the older woman would already like a family, a house and a car and so on, while the younger man is still a student. Then she goes to work and he’s still at school. If you both work or if the difference doesn’t affect potential wedding dates, then there’s less to overcome. If not, well, then not, but some people can handle that. My friend’s parents are six years apart and the father is the younger one.
You are a rather ignorant person, try bettering your english comprehension skills, I think everyone else here has managed to get the gist of what I was saying.