489.4 is what percent of 2500 - 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 2500 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 2500, so we can write it down as 100%=2500.
4. We know, that x% equals 489.4 of the output value, so we can write it down as x%=489.4.
5. Now we have two simple equations:
1) 100%=2500
2) x%=489.4
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%=2500/489.4
6. Now we just have to solve the simple equation, and we will get the solution we are looking for.

7. Solution for 489.4 is what percent of 2500

100%/x%=2500/489.4
(100/x)*x=(2500/489.4)*x       - we multiply both sides of the equation by x
100=5.1082958724969*x       - we divide both sides of the equation by (5.1082958724969) to get x
100/5.1082958724969=x
19.576=x
x=19.576

now we have:
489.4 is 19.576% of 2500