Home / 25,123.68-34,644.60-21,550.92

Finding the Fourth Proportional to 25,123.68, 34,644.60 and 21,550.92

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Solution

The fourth proportional to 25,123.68, 34,644.60 and 21,550.92 is: 29,717.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,123.68 : 34,644.60 = 21,550.92 : x
  2. Step 2: Convert to fraction form
    25,123.68/34,644.60 = 21,550.92/x
  3. Step 3: Cross multiply
    25,123.68x = 34,644.60 × 21,550.92
  4. Step 4: Simplify right side
    25,123.68x = 746,623,003.03
  5. Step 5: Solve for x
    x = 746,623,003.03/25,123.68
  6. Step 6: Final answer
    x = 29,717.90

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Double scale
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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.