Home / 31,793.32-43,874.97-19,863.60

Finding the Fourth Proportional to 31,793.32, 43,874.97 and 19,863.60

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Solution

The fourth proportional to 31,793.32, 43,874.97 and 19,863.60 is: 27,411.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,793.32 : 43,874.97 = 19,863.60 : x
  2. Step 2: Convert to fraction form
    31,793.32/43,874.97 = 19,863.60/x
  3. Step 3: Cross multiply
    31,793.32x = 43,874.97 × 19,863.60
  4. Step 4: Simplify right side
    31,793.32x = 871,514,854.09
  5. Step 5: Solve for x
    x = 871,514,854.09/31,793.32
  6. Step 6: Final answer
    x = 27,411.89

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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.