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Finding the Fourth Proportional to 38,337.80, 57,572.30 and 20,841.80

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Solution

The fourth proportional to 38,337.80, 57,572.30 and 20,841.80 is: 31,298.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,337.80 : 57,572.30 = 20,841.80 : x
  2. Step 2: Convert to fraction form
    38,337.80/57,572.30 = 20,841.80/x
  3. Step 3: Cross multiply
    38,337.80x = 57,572.30 × 20,841.80
  4. Step 4: Simplify right side
    38,337.80x = 1,199,910,362.14
  5. Step 5: Solve for x
    x = 1,199,910,362.14/38,337.80
  6. Step 6: Final answer
    x = 31,298.36

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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.