Home / 31,941.97-47,913.14-8,247.90

Finding the Fourth Proportional to 31,941.97, 47,913.14 and 8,247.90

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Solution

The fourth proportional to 31,941.97, 47,913.14 and 8,247.90 is: 12,371.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,941.97 : 47,913.14 = 8,247.90 : x
  2. Step 2: Convert to fraction form
    31,941.97/47,913.14 = 8,247.90/x
  3. Step 3: Cross multiply
    31,941.97x = 47,913.14 × 8,247.90
  4. Step 4: Simplify right side
    31,941.97x = 395,182,506.60
  5. Step 5: Solve for x
    x = 395,182,506.60/31,941.97
  6. Step 6: Final answer
    x = 12,371.89

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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.