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Finding the Fourth Proportional to 38,062.56, 57,059.28 and 21,612

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Solution

The fourth proportional to 38,062.56, 57,059.28 and 21,612 is: 32,398.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,062.56 : 57,059.28 = 21,612 : x
  2. Step 2: Convert to fraction form
    38,062.56/57,059.28 = 21,612/x
  3. Step 3: Cross multiply
    38,062.56x = 57,059.28 × 21,612
  4. Step 4: Simplify right side
    38,062.56x = 1,233,165,159.36
  5. Step 5: Solve for x
    x = 1,233,165,159.36/38,062.56
  6. Step 6: Final answer
    x = 32,398.38

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.