Home / 38,765.10-58,147.64-12,469.83

Finding the Fourth Proportional to 38,765.10, 58,147.64 and 12,469.83

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Solution

The fourth proportional to 38,765.10, 58,147.64 and 12,469.83 is: 18,704.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,765.10 : 58,147.64 = 12,469.83 : x
  2. Step 2: Convert to fraction form
    38,765.10/58,147.64 = 12,469.83/x
  3. Step 3: Cross multiply
    38,765.10x = 58,147.64 × 12,469.83
  4. Step 4: Simplify right side
    38,765.10x = 725,091,123.35
  5. Step 5: Solve for x
    x = 725,091,123.35/38,765.10
  6. Step 6: Final answer
    x = 18,704.74

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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.