Home / 25,221.60-34,789.14-15,773.76

Finding the Fourth Proportional to 25,221.60, 34,789.14 and 15,773.76

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Solution

The fourth proportional to 25,221.60, 34,789.14 and 15,773.76 is: 21,757.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,221.60 : 34,789.14 = 15,773.76 : x
  2. Step 2: Convert to fraction form
    25,221.60/34,789.14 = 15,773.76/x
  3. Step 3: Cross multiply
    25,221.60x = 34,789.14 × 15,773.76
  4. Step 4: Simplify right side
    25,221.60x = 548,755,544.97
  5. Step 5: Solve for x
    x = 548,755,544.97/25,221.60
  6. Step 6: Final answer
    x = 21,757.36

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.