Home / 31,717.26-47,575.86-8,343.72

Finding the Fourth Proportional to 31,717.26, 47,575.86 and 8,343.72

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Solution

The fourth proportional to 31,717.26, 47,575.86 and 8,343.72 is: 12,515.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,717.26 : 47,575.86 = 8,343.72 : x
  2. Step 2: Convert to fraction form
    31,717.26/47,575.86 = 8,343.72/x
  3. Step 3: Cross multiply
    31,717.26x = 47,575.86 × 8,343.72
  4. Step 4: Simplify right side
    31,717.26x = 396,959,654.60
  5. Step 5: Solve for x
    x = 396,959,654.60/31,717.26
  6. Step 6: Final answer
    x = 12,515.57

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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.