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Finding the Fourth Proportional to 38,200.38, 57,300.03 and 18,480.66

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Solution

The fourth proportional to 38,200.38, 57,300.03 and 18,480.66 is: 27,720.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,200.38 : 57,300.03 = 18,480.66 : x
  2. Step 2: Convert to fraction form
    38,200.38/57,300.03 = 18,480.66/x
  3. Step 3: Cross multiply
    38,200.38x = 57,300.03 × 18,480.66
  4. Step 4: Simplify right side
    38,200.38x = 1,058,942,372.42
  5. Step 5: Solve for x
    x = 1,058,942,372.42/38,200.38
  6. Step 6: Final answer
    x = 27,720.73

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.