432.9 is what percent of 2172 - 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 2172 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 2172, so we can write it down as 100%=2172.
4. We know, that x% equals 432.9 of the output value, so we can write it down as x%=432.9.
5. Now we have two simple equations:
1) 100%=2172
2) x%=432.9
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%=2172/432.9
6. Now we just have to solve the simple equation, and we will get the solution we are looking for.

7. Solution for 432.9 is what percent of 2172

100%/x%=2172/432.9
(100/x)*x=(2172/432.9)*x       - we multiply both sides of the equation by x
100=5.017325017325*x       - we divide both sides of the equation by (5.017325017325) to get x
100/5.017325017325=x
19.930939226519=x
x=19.930939226519

now we have:
432.9 is 19.930939226519% of 2172