Home / 31,929.40-47,915.82-11,152.84

Finding the Fourth Proportional to 31,929.40, 47,915.82 and 11,152.84

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Solution

The fourth proportional to 31,929.40, 47,915.82 and 11,152.84 is: 16,736.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,929.40 : 47,915.82 = 11,152.84 : x
  2. Step 2: Convert to fraction form
    31,929.40/47,915.82 = 11,152.84/x
  3. Step 3: Cross multiply
    31,929.40x = 47,915.82 × 11,152.84
  4. Step 4: Simplify right side
    31,929.40x = 534,397,473.93
  5. Step 5: Solve for x
    x = 534,397,473.93/31,929.40
  6. Step 6: Final answer
    x = 16,736.85

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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.