Home / 31,961.92-47,945.76-8,587.84

Finding the Fourth Proportional to 31,961.92, 47,945.76 and 8,587.84

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Solution

The fourth proportional to 31,961.92, 47,945.76 and 8,587.84 is: 12,882.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,961.92 : 47,945.76 = 8,587.84 : x
  2. Step 2: Convert to fraction form
    31,961.92/47,945.76 = 8,587.84/x
  3. Step 3: Cross multiply
    31,961.92x = 47,945.76 × 8,587.84
  4. Step 4: Simplify right side
    31,961.92x = 411,750,515.56
  5. Step 5: Solve for x
    x = 411,750,515.56/31,961.92
  6. Step 6: Final answer
    x = 12,882.53

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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.