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Finding the Fourth Proportional to 18,231.38, 27,348.54 and 5,083.88

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Solution

The fourth proportional to 18,231.38, 27,348.54 and 5,083.88 is: 7,626.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,231.38 : 27,348.54 = 5,083.88 : x
  2. Step 2: Convert to fraction form
    18,231.38/27,348.54 = 5,083.88/x
  3. Step 3: Cross multiply
    18,231.38x = 27,348.54 × 5,083.88
  4. Step 4: Simplify right side
    18,231.38x = 139,036,695.54
  5. Step 5: Solve for x
    x = 139,036,695.54/18,231.38
  6. Step 6: Final answer
    x = 7,626.23

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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.