Home / 20,608.17-28,439.26-11,176.73

Finding the Fourth Proportional to 20,608.17, 28,439.26 and 11,176.73

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Solution

The fourth proportional to 20,608.17, 28,439.26 and 11,176.73 is: 15,423.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,608.17 : 28,439.26 = 11,176.73 : x
  2. Step 2: Convert to fraction form
    20,608.17/28,439.26 = 11,176.73/x
  3. Step 3: Cross multiply
    20,608.17x = 28,439.26 × 11,176.73
  4. Step 4: Simplify right side
    20,608.17x = 317,857,930.42
  5. Step 5: Solve for x
    x = 317,857,930.42/20,608.17
  6. Step 6: Final answer
    x = 15,423.88

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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.