Home / 31,694.11-43,767.50-20,383.25

Finding the Fourth Proportional to 31,694.11, 43,767.50 and 20,383.25

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Solution

The fourth proportional to 31,694.11, 43,767.50 and 20,383.25 is: 28,147.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,694.11 : 43,767.50 = 20,383.25 : x
  2. Step 2: Convert to fraction form
    31,694.11/43,767.50 = 20,383.25/x
  3. Step 3: Cross multiply
    31,694.11x = 43,767.50 × 20,383.25
  4. Step 4: Simplify right side
    31,694.11x = 892,123,894.38
  5. Step 5: Solve for x
    x = 892,123,894.38/31,694.11
  6. Step 6: Final answer
    x = 28,147.94

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.