Home / 20,694.25-28,558.07-11,262.88

Finding the Fourth Proportional to 20,694.25, 28,558.07 and 11,262.88

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Solution

The fourth proportional to 20,694.25, 28,558.07 and 11,262.88 is: 15,542.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,694.25 : 28,558.07 = 11,262.88 : x
  2. Step 2: Convert to fraction form
    20,694.25/28,558.07 = 11,262.88/x
  3. Step 3: Cross multiply
    20,694.25x = 28,558.07 × 11,262.88
  4. Step 4: Simplify right side
    20,694.25x = 321,646,115.44
  5. Step 5: Solve for x
    x = 321,646,115.44/20,694.25
  6. Step 6: Final answer
    x = 15,542.78

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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.