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Finding the Fourth Proportional to 38,143.98, 57,192.28 and 15,930.14

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Solution

The fourth proportional to 38,143.98, 57,192.28 and 15,930.14 is: 23,885.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,143.98 : 57,192.28 = 15,930.14 : x
  2. Step 2: Convert to fraction form
    38,143.98/57,192.28 = 15,930.14/x
  3. Step 3: Cross multiply
    38,143.98x = 57,192.28 × 15,930.14
  4. Step 4: Simplify right side
    38,143.98x = 911,080,701.53
  5. Step 5: Solve for x
    x = 911,080,701.53/38,143.98
  6. Step 6: Final answer
    x = 23,885.31

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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.