Home / 31,747.07-47,620.20-10,691.75

Finding the Fourth Proportional to 31,747.07, 47,620.20 and 10,691.75

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Solution

The fourth proportional to 31,747.07, 47,620.20 and 10,691.75 is: 16,037.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,747.07 : 47,620.20 = 10,691.75 : x
  2. Step 2: Convert to fraction form
    31,747.07/47,620.20 = 10,691.75/x
  3. Step 3: Cross multiply
    31,747.07x = 47,620.20 × 10,691.75
  4. Step 4: Simplify right side
    31,747.07x = 509,143,273.35
  5. Step 5: Solve for x
    x = 509,143,273.35/31,747.07
  6. Step 6: Final answer
    x = 16,037.49

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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.