Home / 31,546.40-47,309.88-10,481.95

Finding the Fourth Proportional to 31,546.40, 47,309.88 and 10,481.95

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Solution

The fourth proportional to 31,546.40, 47,309.88 and 10,481.95 is: 15,719.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,546.40 : 47,309.88 = 10,481.95 : x
  2. Step 2: Convert to fraction form
    31,546.40/47,309.88 = 10,481.95/x
  3. Step 3: Cross multiply
    31,546.40x = 47,309.88 × 10,481.95
  4. Step 4: Simplify right side
    31,546.40x = 495,899,560.12
  5. Step 5: Solve for x
    x = 495,899,560.12/31,546.40
  6. Step 6: Final answer
    x = 15,719.69

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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.