28 is what percent of 671 - step by step solution

To get the solution, we are looking for, we need to point out what we know.

1. We assume, that the number 671 is 100% - because it's the output value of the task.
2. We assume, that x is the value we are looking for.
3. If 100% equals 671, so we can write it down as 100%=671.
4. We know, that x% equals 28 of the output value, so we can write it down as x%=28.
5. Now we have two simple equations:
1) 100%=671
2) x%=28
where left sides of both of them have the same units, and both right sides have the same units, so we can do something like that:
100%/x%=671/28
6. Now we just have to solve the simple equation, and we will get the solution we are looking for.

7. Solution for 28 is what percent of 671

100%/x%=671/28
(100/x)*x=(671/28)*x       - we multiply both sides of the equation by x
100=23.964285714286*x       - we divide both sides of the equation by (23.964285714286) to get x
100/23.964285714286=x
4.1728763040238=x
x=4.1728763040238

now we have:
28 is 4.1728763040238% of 671