Home / 31,511.82-47,251.33-9,322.20

Finding the Fourth Proportional to 31,511.82, 47,251.33 and 9,322.20

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Solution

The fourth proportional to 31,511.82, 47,251.33 and 9,322.20 is: 13,978.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,511.82 : 47,251.33 = 9,322.20 : x
  2. Step 2: Convert to fraction form
    31,511.82/47,251.33 = 9,322.20/x
  3. Step 3: Cross multiply
    31,511.82x = 47,251.33 × 9,322.20
  4. Step 4: Simplify right side
    31,511.82x = 440,486,348.53
  5. Step 5: Solve for x
    x = 440,486,348.53/31,511.82
  6. Step 6: Final answer
    x = 13,978.45

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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.