Home / 31,452.48-47,175.12-13,679.46

Finding the Fourth Proportional to 31,452.48, 47,175.12 and 13,679.46

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Solution

The fourth proportional to 31,452.48, 47,175.12 and 13,679.46 is: 20,517.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,452.48 : 47,175.12 = 13,679.46 : x
  2. Step 2: Convert to fraction form
    31,452.48/47,175.12 = 13,679.46/x
  3. Step 3: Cross multiply
    31,452.48x = 47,175.12 × 13,679.46
  4. Step 4: Simplify right side
    31,452.48x = 645,330,167.04
  5. Step 5: Solve for x
    x = 645,330,167.04/31,452.48
  6. Step 6: Final answer
    x = 20,517.62

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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.