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Finding the Fourth Proportional to 38,791, 58,189.88 and 10,711.09

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Solution

The fourth proportional to 38,791, 58,189.88 and 10,711.09 is: 16,067.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,791 : 58,189.88 = 10,711.09 : x
  2. Step 2: Convert to fraction form
    38,791/58,189.88 = 10,711.09/x
  3. Step 3: Cross multiply
    38,791x = 58,189.88 × 10,711.09
  4. Step 4: Simplify right side
    38,791x = 623,277,041.77
  5. Step 5: Solve for x
    x = 623,277,041.77/38,791
  6. Step 6: Final answer
    x = 16,067.57

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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.