Home / 31,517.38-47,281.70-10,458.68

Finding the Fourth Proportional to 31,517.38, 47,281.70 and 10,458.68

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Solution

The fourth proportional to 31,517.38, 47,281.70 and 10,458.68 is: 15,689.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,517.38 : 47,281.70 = 10,458.68 : x
  2. Step 2: Convert to fraction form
    31,517.38/47,281.70 = 10,458.68/x
  3. Step 3: Cross multiply
    31,517.38x = 47,281.70 × 10,458.68
  4. Step 4: Simplify right side
    31,517.38x = 494,504,170.16
  5. Step 5: Solve for x
    x = 494,504,170.16/31,517.38
  6. Step 6: Final answer
    x = 15,689.89

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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.