Home / 20,924.26-28,876.17-11,493.70

Finding the Fourth Proportional to 20,924.26, 28,876.17 and 11,493.70

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Solution

The fourth proportional to 20,924.26, 28,876.17 and 11,493.70 is: 15,861.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,924.26 : 28,876.17 = 11,493.70 : x
  2. Step 2: Convert to fraction form
    20,924.26/28,876.17 = 11,493.70/x
  3. Step 3: Cross multiply
    20,924.26x = 28,876.17 × 11,493.70
  4. Step 4: Simplify right side
    20,924.26x = 331,894,035.13
  5. Step 5: Solve for x
    x = 331,894,035.13/20,924.26
  6. Step 6: Final answer
    x = 15,861.69

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.