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Finding the Fourth Proportional to 38,881, 58,321.45 and 12,229.33

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Solution

The fourth proportional to 38,881, 58,321.45 and 12,229.33 is: 18,343.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,881 : 58,321.45 = 12,229.33 : x
  2. Step 2: Convert to fraction form
    38,881/58,321.45 = 12,229.33/x
  3. Step 3: Cross multiply
    38,881x = 58,321.45 × 12,229.33
  4. Step 4: Simplify right side
    38,881x = 713,232,196.98
  5. Step 5: Solve for x
    x = 713,232,196.98/38,881
  6. Step 6: Final answer
    x = 18,343.98

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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.