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Finding the Fourth Proportional to 47,896.92, 71,871.84 and 18,318.96

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Solution

The fourth proportional to 47,896.92, 71,871.84 and 18,318.96 is: 27,488.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,896.92 : 71,871.84 = 18,318.96 : x
  2. Step 2: Convert to fraction form
    47,896.92/71,871.84 = 18,318.96/x
  3. Step 3: Cross multiply
    47,896.92x = 71,871.84 × 18,318.96
  4. Step 4: Simplify right side
    47,896.92x = 1,316,617,362.09
  5. Step 5: Solve for x
    x = 1,316,617,362.09/47,896.92
  6. Step 6: Final answer
    x = 27,488.56

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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.