Home / 31,908.06-47,789.12-15,279.84

Finding the Fourth Proportional to 31,908.06, 47,789.12 and 15,279.84

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Solution

The fourth proportional to 31,908.06, 47,789.12 and 15,279.84 is: 22,884.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,908.06 : 47,789.12 = 15,279.84 : x
  2. Step 2: Convert to fraction form
    31,908.06/47,789.12 = 15,279.84/x
  3. Step 3: Cross multiply
    31,908.06x = 47,789.12 × 15,279.84
  4. Step 4: Simplify right side
    31,908.06x = 730,210,145.54
  5. Step 5: Solve for x
    x = 730,210,145.54/31,908.06
  6. Step 6: Final answer
    x = 22,884.82

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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.