Home / 38,667.89-57,989.48-12,366.38

Finding the Fourth Proportional to 38,667.89, 57,989.48 and 12,366.38

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Solution

The fourth proportional to 38,667.89, 57,989.48 and 12,366.38 is: 18,545.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,667.89 : 57,989.48 = 12,366.38 : x
  2. Step 2: Convert to fraction form
    38,667.89/57,989.48 = 12,366.38/x
  3. Step 3: Cross multiply
    38,667.89x = 57,989.48 × 12,366.38
  4. Step 4: Simplify right side
    38,667.89x = 717,119,593.90
  5. Step 5: Solve for x
    x = 717,119,593.90/38,667.89
  6. Step 6: Final answer
    x = 18,545.61

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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.