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Finding the Fourth Proportional to 17,442.18, 24,071.49 and 9,990.18

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Solution

The fourth proportional to 17,442.18, 24,071.49 and 9,990.18 is: 13,787.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,442.18 : 24,071.49 = 9,990.18 : x
  2. Step 2: Convert to fraction form
    17,442.18/24,071.49 = 9,990.18/x
  3. Step 3: Cross multiply
    17,442.18x = 24,071.49 × 9,990.18
  4. Step 4: Simplify right side
    17,442.18x = 240,478,517.97
  5. Step 5: Solve for x
    x = 240,478,517.97/17,442.18
  6. Step 6: Final answer
    x = 13,787.18

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.