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Finding the Fourth Proportional to 24,206.80, 36,310.20 and 20,318.80

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Solution

The fourth proportional to 24,206.80, 36,310.20 and 20,318.80 is: 30,478.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    24,206.80 : 36,310.20 = 20,318.80 : x
  2. Step 2: Convert to fraction form
    24,206.80/36,310.20 = 20,318.80/x
  3. Step 3: Cross multiply
    24,206.80x = 36,310.20 × 20,318.80
  4. Step 4: Simplify right side
    24,206.80x = 737,779,691.76
  5. Step 5: Solve for x
    x = 737,779,691.76/24,206.80
  6. Step 6: Final answer
    x = 30,478.20

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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.