28 is what percent of 131.64 - 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 131.64 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 131.64, so we can write it down as 100%=131.64.
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%=131.64
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%=131.64/28
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 131.64

100%/x%=131.64/28
(100/x)*x=(131.64/28)*x       - we multiply both sides of the equation by x
100=4.7014285714286*x       - we divide both sides of the equation by (4.7014285714286) to get x
100/4.7014285714286=x
21.270130659374=x
x=21.270130659374

now we have:
28 is 21.270130659374% of 131.64