Home / 28,976.67-43,450.25-13,380.75

Finding the Fourth Proportional to 28,976.67, 43,450.25 and 13,380.75

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Solution

The fourth proportional to 28,976.67, 43,450.25 and 13,380.75 is: 20,064.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,976.67 : 43,450.25 = 13,380.75 : x
  2. Step 2: Convert to fraction form
    28,976.67/43,450.25 = 13,380.75/x
  3. Step 3: Cross multiply
    28,976.67x = 43,450.25 × 13,380.75
  4. Step 4: Simplify right side
    28,976.67x = 581,396,865.78
  5. Step 5: Solve for x
    x = 581,396,865.78/28,976.67
  6. Step 6: Final answer
    x = 20,064.31

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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.