Home / 20,761.26-28,650.69-11,329.62

Finding the Fourth Proportional to 20,761.26, 28,650.69 and 11,329.62

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Solution

The fourth proportional to 20,761.26, 28,650.69 and 11,329.62 is: 15,634.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,761.26 : 28,650.69 = 11,329.62 : x
  2. Step 2: Convert to fraction form
    20,761.26/28,650.69 = 11,329.62/x
  3. Step 3: Cross multiply
    20,761.26x = 28,650.69 × 11,329.62
  4. Step 4: Simplify right side
    20,761.26x = 324,601,430.44
  5. Step 5: Solve for x
    x = 324,601,430.44/20,761.26
  6. Step 6: Final answer
    x = 15,634.96

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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.