Home / 31,965.84-47,947.68-8,591.04

Finding the Fourth Proportional to 31,965.84, 47,947.68 and 8,591.04

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Solution

The fourth proportional to 31,965.84, 47,947.68 and 8,591.04 is: 12,886.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,965.84 : 47,947.68 = 8,591.04 : x
  2. Step 2: Convert to fraction form
    31,965.84/47,947.68 = 8,591.04/x
  3. Step 3: Cross multiply
    31,965.84x = 47,947.68 × 8,591.04
  4. Step 4: Simplify right side
    31,965.84x = 411,920,436.79
  5. Step 5: Solve for x
    x = 411,920,436.79/31,965.84
  6. Step 6: Final answer
    x = 12,886.27

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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.