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Finding the Fourth Proportional to 18,281.28, 27,418.02 and 5,802.42

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Solution

The fourth proportional to 18,281.28, 27,418.02 and 5,802.42 is: 8,702.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,281.28 : 27,418.02 = 5,802.42 : x
  2. Step 2: Convert to fraction form
    18,281.28/27,418.02 = 5,802.42/x
  3. Step 3: Cross multiply
    18,281.28x = 27,418.02 × 5,802.42
  4. Step 4: Simplify right side
    18,281.28x = 159,090,867.61
  5. Step 5: Solve for x
    x = 159,090,867.61/18,281.28
  6. Step 6: Final answer
    x = 8,702.39

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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.