Home / 31,440.18-47,164.96-10,382.44

Finding the Fourth Proportional to 31,440.18, 47,164.96 and 10,382.44

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Solution

The fourth proportional to 31,440.18, 47,164.96 and 10,382.44 is: 15,575.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,440.18 : 47,164.96 = 10,382.44 : x
  2. Step 2: Convert to fraction form
    31,440.18/47,164.96 = 10,382.44/x
  3. Step 3: Cross multiply
    31,440.18x = 47,164.96 × 10,382.44
  4. Step 4: Simplify right side
    31,440.18x = 489,687,367.30
  5. Step 5: Solve for x
    x = 489,687,367.30/31,440.18
  6. Step 6: Final answer
    x = 15,575.21

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1.5x scale

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.