Home / 20,624.76-28,462.05-11,193.12

Finding the Fourth Proportional to 20,624.76, 28,462.05 and 11,193.12

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Solution

The fourth proportional to 20,624.76, 28,462.05 and 11,193.12 is: 15,446.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,624.76 : 28,462.05 = 11,193.12 : x
  2. Step 2: Convert to fraction form
    20,624.76/28,462.05 = 11,193.12/x
  3. Step 3: Cross multiply
    20,624.76x = 28,462.05 × 11,193.12
  4. Step 4: Simplify right side
    20,624.76x = 318,579,141.10
  5. Step 5: Solve for x
    x = 318,579,141.10/20,624.76
  6. Step 6: Final answer
    x = 15,446.44

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Double scale
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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.