Finding the Third Proportional to 7,831.55 and 18,481.05
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Solution
The third proportional to 7,831.55 and 18,481.05 is: 43,611.99
Step by Step Solution
- Step 1: Write the proportion equation
7,831.55 : 18,481.05 = 18,481.05 : x - Step 2: Convert to fraction form
7,831.55/18,481.05 = 18,481.05/x - Step 3: Cross multiply
7,831.55x = 18,481.05 × 18,481.05 - Step 4: Simplify right side
7,831.55x = 341,549,382.36 - Step 5: Solve for x
x = 341,549,382.36/7,831.55 - Step 6: Final answer
x = 43,611.99
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Why These Related Problems?
These problems maintain the same ratio (2.36) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.