Home / 38,294.06-57,441.12-12,000.86

Finding the Fourth Proportional to 38,294.06, 57,441.12 and 12,000.86

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Solution

The fourth proportional to 38,294.06, 57,441.12 and 12,000.86 is: 18,001.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,294.06 : 57,441.12 = 12,000.86 : x
  2. Step 2: Convert to fraction form
    38,294.06/57,441.12 = 12,000.86/x
  3. Step 3: Cross multiply
    38,294.06x = 57,441.12 × 12,000.86
  4. Step 4: Simplify right side
    38,294.06x = 689,342,839.36
  5. Step 5: Solve for x
    x = 689,342,839.36/38,294.06
  6. Step 6: Final answer
    x = 18,001.30

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Double scale
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Similar ratio
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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.