Home / 43,874.43-65,787.33-20,488.11

Finding the Fourth Proportional to 43,874.43, 65,787.33 and 20,488.11

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Solution

The fourth proportional to 43,874.43, 65,787.33 and 20,488.11 is: 30,720.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,874.43 : 65,787.33 = 20,488.11 : x
  2. Step 2: Convert to fraction form
    43,874.43/65,787.33 = 20,488.11/x
  3. Step 3: Cross multiply
    43,874.43x = 65,787.33 × 20,488.11
  4. Step 4: Simplify right side
    43,874.43x = 1,347,858,053.65
  5. Step 5: Solve for x
    x = 1,347,858,053.65/43,874.43
  6. Step 6: Final answer
    x = 30,720.81

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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.