Home / 31,930.56-47,767.20-28,610.88

Finding the Fourth Proportional to 31,930.56, 47,767.20 and 28,610.88

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Solution

The fourth proportional to 31,930.56, 47,767.20 and 28,610.88 is: 42,801.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,930.56 : 47,767.20 = 28,610.88 : x
  2. Step 2: Convert to fraction form
    31,930.56/47,767.20 = 28,610.88/x
  3. Step 3: Cross multiply
    31,930.56x = 47,767.20 × 28,610.88
  4. Step 4: Simplify right side
    31,930.56x = 1,366,661,627.14
  5. Step 5: Solve for x
    x = 1,366,661,627.14/31,930.56
  6. Step 6: Final answer
    x = 42,801.05

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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.