Home / 35,691.60-53,517.15-13,505.70

Finding the Fourth Proportional to 35,691.60, 53,517.15 and 13,505.70

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Solution

The fourth proportional to 35,691.60, 53,517.15 and 13,505.70 is: 20,250.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,691.60 : 53,517.15 = 13,505.70 : x
  2. Step 2: Convert to fraction form
    35,691.60/53,517.15 = 13,505.70/x
  3. Step 3: Cross multiply
    35,691.60x = 53,517.15 × 13,505.70
  4. Step 4: Simplify right side
    35,691.60x = 722,786,572.76
  5. Step 5: Solve for x
    x = 722,786,572.76/35,691.60
  6. Step 6: Final answer
    x = 20,250.89

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.