Home / 38,777.12-58,165.68-12,481.86

Finding the Fourth Proportional to 38,777.12, 58,165.68 and 12,481.86

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Solution

The fourth proportional to 38,777.12, 58,165.68 and 12,481.86 is: 18,722.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,777.12 : 58,165.68 = 12,481.86 : x
  2. Step 2: Convert to fraction form
    38,777.12/58,165.68 = 12,481.86/x
  3. Step 3: Cross multiply
    38,777.12x = 58,165.68 × 12,481.86
  4. Step 4: Simplify right side
    38,777.12x = 726,015,874.56
  5. Step 5: Solve for x
    x = 726,015,874.56/38,777.12
  6. Step 6: Final answer
    x = 18,722.79

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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.