Home / 20,035.92-30,010.14-12,221.04

Finding the Fourth Proportional to 20,035.92, 30,010.14 and 12,221.04

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Solution

The fourth proportional to 20,035.92, 30,010.14 and 12,221.04 is: 18,304.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,035.92 : 30,010.14 = 12,221.04 : x
  2. Step 2: Convert to fraction form
    20,035.92/30,010.14 = 12,221.04/x
  3. Step 3: Cross multiply
    20,035.92x = 30,010.14 × 12,221.04
  4. Step 4: Simplify right side
    20,035.92x = 366,755,121.35
  5. Step 5: Solve for x
    x = 366,755,121.35/20,035.92
  6. Step 6: Final answer
    x = 18,304.88

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1.5x scale

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.