Home / 31,520.60-47,282.51-8,147.24

Finding the Fourth Proportional to 31,520.60, 47,282.51 and 8,147.24

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Solution

The fourth proportional to 31,520.60, 47,282.51 and 8,147.24 is: 12,221.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,520.60 : 47,282.51 = 8,147.24 : x
  2. Step 2: Convert to fraction form
    31,520.60/47,282.51 = 8,147.24/x
  3. Step 3: Cross multiply
    31,520.60x = 47,282.51 × 8,147.24
  4. Step 4: Simplify right side
    31,520.60x = 385,221,740.73
  5. Step 5: Solve for x
    x = 385,221,740.73/31,520.60
  6. Step 6: Final answer
    x = 12,221.27

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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.