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Finding the Fourth Proportional to 42,538.56, 63,807.84 and 11,373

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Solution

The fourth proportional to 42,538.56, 63,807.84 and 11,373 is: 17,059.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,538.56 : 63,807.84 = 11,373 : x
  2. Step 2: Convert to fraction form
    42,538.56/63,807.84 = 11,373/x
  3. Step 3: Cross multiply
    42,538.56x = 63,807.84 × 11,373
  4. Step 4: Simplify right side
    42,538.56x = 725,686,564.32
  5. Step 5: Solve for x
    x = 725,686,564.32/42,538.56
  6. Step 6: Final answer
    x = 17,059.50

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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.