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Finding the Fourth Proportional to 27,008.20, 40,463.70 and 23,120.20

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Solution

The fourth proportional to 27,008.20, 40,463.70 and 23,120.20 is: 34,638.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,008.20 : 40,463.70 = 23,120.20 : x
  2. Step 2: Convert to fraction form
    27,008.20/40,463.70 = 23,120.20/x
  3. Step 3: Cross multiply
    27,008.20x = 40,463.70 × 23,120.20
  4. Step 4: Simplify right side
    27,008.20x = 935,528,836.74
  5. Step 5: Solve for x
    x = 935,528,836.74/27,008.20
  6. Step 6: Final answer
    x = 34,638.70

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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.