Home / 38,489.31-57,733.92-20,922.21

Finding the Fourth Proportional to 38,489.31, 57,733.92 and 20,922.21

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Solution

The fourth proportional to 38,489.31, 57,733.92 and 20,922.21 is: 31,383.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,489.31 : 57,733.92 = 20,922.21 : x
  2. Step 2: Convert to fraction form
    38,489.31/57,733.92 = 20,922.21/x
  3. Step 3: Cross multiply
    38,489.31x = 57,733.92 × 20,922.21
  4. Step 4: Simplify right side
    38,489.31x = 1,207,921,198.36
  5. Step 5: Solve for x
    x = 1,207,921,198.36/38,489.31
  6. Step 6: Final answer
    x = 31,383.29

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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.