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Finding the Fourth Proportional to 23,728, 32,745.18 and 15,359.08

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Solution

The fourth proportional to 23,728, 32,745.18 and 15,359.08 is: 21,195.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,728 : 32,745.18 = 15,359.08 : x
  2. Step 2: Convert to fraction form
    23,728/32,745.18 = 15,359.08/x
  3. Step 3: Cross multiply
    23,728x = 32,745.18 × 15,359.08
  4. Step 4: Simplify right side
    23,728x = 502,935,839.23
  5. Step 5: Solve for x
    x = 502,935,839.23/23,728
  6. Step 6: Final answer
    x = 21,195.88

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Why These Related Problems?

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