Home / 20,134.53-30,217.38-13,937.85

Finding the Fourth Proportional to 20,134.53, 30,217.38 and 13,937.85

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Solution

The fourth proportional to 20,134.53, 30,217.38 and 13,937.85 is: 20,917.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,134.53 : 30,217.38 = 13,937.85 : x
  2. Step 2: Convert to fraction form
    20,134.53/30,217.38 = 13,937.85/x
  3. Step 3: Cross multiply
    20,134.53x = 30,217.38 × 13,937.85
  4. Step 4: Simplify right side
    20,134.53x = 421,165,309.83
  5. Step 5: Solve for x
    x = 421,165,309.83/20,134.53
  6. Step 6: Final answer
    x = 20,917.56

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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.