Home / 31,842.97-47,764.92-12,122.61

Finding the Fourth Proportional to 31,842.97, 47,764.92 and 12,122.61

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Solution

The fourth proportional to 31,842.97, 47,764.92 and 12,122.61 is: 18,184.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,842.97 : 47,764.92 = 12,122.61 : x
  2. Step 2: Convert to fraction form
    31,842.97/47,764.92 = 12,122.61/x
  3. Step 3: Cross multiply
    31,842.97x = 47,764.92 × 12,122.61
  4. Step 4: Simplify right side
    31,842.97x = 579,035,529.58
  5. Step 5: Solve for x
    x = 579,035,529.58/31,842.97
  6. Step 6: Final answer
    x = 18,184.09

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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.