Home / 14,451.20-21,580.32-13,713.12

Finding the Fourth Proportional to 14,451.20, 21,580.32 and 13,713.12

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Solution

The fourth proportional to 14,451.20, 21,580.32 and 13,713.12 is: 20,478.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,451.20 : 21,580.32 = 13,713.12 : x
  2. Step 2: Convert to fraction form
    14,451.20/21,580.32 = 13,713.12/x
  3. Step 3: Cross multiply
    14,451.20x = 21,580.32 × 13,713.12
  4. Step 4: Simplify right side
    14,451.20x = 295,933,517.80
  5. Step 5: Solve for x
    x = 295,933,517.80/14,451.20
  6. Step 6: Final answer
    x = 20,478.13

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.