Home / 31,423.46-47,122.89-11,691.26

Finding the Fourth Proportional to 31,423.46, 47,122.89 and 11,691.26

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Solution

The fourth proportional to 31,423.46, 47,122.89 and 11,691.26 is: 17,532.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,423.46 : 47,122.89 = 11,691.26 : x
  2. Step 2: Convert to fraction form
    31,423.46/47,122.89 = 11,691.26/x
  3. Step 3: Cross multiply
    31,423.46x = 47,122.89 × 11,691.26
  4. Step 4: Simplify right side
    31,423.46x = 550,925,723.33
  5. Step 5: Solve for x
    x = 550,925,723.33/31,423.46
  6. Step 6: Final answer
    x = 17,532.31

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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.