Home / 38,188.92-57,221.82-20,667

Finding the Fourth Proportional to 38,188.92, 57,221.82 and 20,667

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Solution

The fourth proportional to 38,188.92, 57,221.82 and 20,667 is: 30,967.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,188.92 : 57,221.82 = 20,667 : x
  2. Step 2: Convert to fraction form
    38,188.92/57,221.82 = 20,667/x
  3. Step 3: Cross multiply
    38,188.92x = 57,221.82 × 20,667
  4. Step 4: Simplify right side
    38,188.92x = 1,182,603,353.94
  5. Step 5: Solve for x
    x = 1,182,603,353.94/38,188.92
  6. Step 6: Final answer
    x = 30,967.19

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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.