Home / 38,381.68-57,581.63-12,086.35

Finding the Fourth Proportional to 38,381.68, 57,581.63 and 12,086.35

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Solution

The fourth proportional to 38,381.68, 57,581.63 and 12,086.35 is: 18,132.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,381.68 : 57,581.63 = 12,086.35 : x
  2. Step 2: Convert to fraction form
    38,381.68/57,581.63 = 12,086.35/x
  3. Step 3: Cross multiply
    38,381.68x = 57,581.63 × 12,086.35
  4. Step 4: Simplify right side
    38,381.68x = 695,951,385.41
  5. Step 5: Solve for x
    x = 695,951,385.41/38,381.68
  6. Step 6: Final answer
    x = 18,132.38

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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.