Home / 20,134.62-30,167.82-12,327.12

Finding the Fourth Proportional to 20,134.62, 30,167.82 and 12,327.12

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Solution

The fourth proportional to 20,134.62, 30,167.82 and 12,327.12 is: 18,469.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,134.62 : 30,167.82 = 12,327.12 : x
  2. Step 2: Convert to fraction form
    20,134.62/30,167.82 = 12,327.12/x
  3. Step 3: Cross multiply
    20,134.62x = 30,167.82 × 12,327.12
  4. Step 4: Simplify right side
    20,134.62x = 371,882,337.28
  5. Step 5: Solve for x
    x = 371,882,337.28/20,134.62
  6. Step 6: Final answer
    x = 18,469.80

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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.