Home / 31,982.40-47,933.10-12,234.60

Finding the Fourth Proportional to 31,982.40, 47,933.10 and 12,234.60

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Solution

The fourth proportional to 31,982.40, 47,933.10 and 12,234.60 is: 18,336.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,982.40 : 47,933.10 = 12,234.60 : x
  2. Step 2: Convert to fraction form
    31,982.40/47,933.10 = 12,234.60/x
  3. Step 3: Cross multiply
    31,982.40x = 47,933.10 × 12,234.60
  4. Step 4: Simplify right side
    31,982.40x = 586,442,305.26
  5. Step 5: Solve for x
    x = 586,442,305.26/31,982.40
  6. Step 6: Final answer
    x = 18,336.41

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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.