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Finding the Fourth Proportional to 20,000.62, 30,006.41 and 8,753.92

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Solution

The fourth proportional to 20,000.62, 30,006.41 and 8,753.92 is: 13,133.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,000.62 : 30,006.41 = 8,753.92 : x
  2. Step 2: Convert to fraction form
    20,000.62/30,006.41 = 8,753.92/x
  3. Step 3: Cross multiply
    20,000.62x = 30,006.41 × 8,753.92
  4. Step 4: Simplify right side
    20,000.62x = 262,673,668.86
  5. Step 5: Solve for x
    x = 262,673,668.86/20,000.62
  6. Step 6: Final answer
    x = 13,133.28

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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.