Home / 31,575.30-47,338.12-15,772.18

Finding the Fourth Proportional to 31,575.30, 47,338.12 and 15,772.18

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Solution

The fourth proportional to 31,575.30, 47,338.12 and 15,772.18 is: 23,645.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,575.30 : 47,338.12 = 15,772.18 : x
  2. Step 2: Convert to fraction form
    31,575.30/47,338.12 = 15,772.18/x
  3. Step 3: Cross multiply
    31,575.30x = 47,338.12 × 15,772.18
  4. Step 4: Simplify right side
    31,575.30x = 746,625,033.95
  5. Step 5: Solve for x
    x = 746,625,033.95/31,575.30
  6. Step 6: Final answer
    x = 23,645.86

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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.