Home / 20,115.38-30,150.48-9,446.96

Finding the Fourth Proportional to 20,115.38, 30,150.48 and 9,446.96

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Solution

The fourth proportional to 20,115.38, 30,150.48 and 9,446.96 is: 14,159.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,115.38 : 30,150.48 = 9,446.96 : x
  2. Step 2: Convert to fraction form
    20,115.38/30,150.48 = 9,446.96/x
  3. Step 3: Cross multiply
    20,115.38x = 30,150.48 × 9,446.96
  4. Step 4: Simplify right side
    20,115.38x = 284,830,378.54
  5. Step 5: Solve for x
    x = 284,830,378.54/20,115.38
  6. Step 6: Final answer
    x = 14,159.83

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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.