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Finding the Fourth Proportional to 31,520.00, 47,286.92 and 9,335.11

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Solution

The fourth proportional to 31,520.00, 47,286.92 and 9,335.11 is: 14,004.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,520.00 : 47,286.92 = 9,335.11 : x
  2. Step 2: Convert to fraction form
    31,520.00/47,286.92 = 9,335.11/x
  3. Step 3: Cross multiply
    31,520.00x = 47,286.92 × 9,335.11
  4. Step 4: Simplify right side
    31,520.00x = 441,428,460.55
  5. Step 5: Solve for x
    x = 441,428,460.55/31,520.00
  6. Step 6: Final answer
    x = 14,004.71

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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.