Home / 20,748.72-28,634.60-11,796.24

Finding the Fourth Proportional to 20,748.72, 28,634.60 and 11,796.24

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Solution

The fourth proportional to 20,748.72, 28,634.60 and 11,796.24 is: 16,279.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,748.72 : 28,634.60 = 11,796.24 : x
  2. Step 2: Convert to fraction form
    20,748.72/28,634.60 = 11,796.24/x
  3. Step 3: Cross multiply
    20,748.72x = 28,634.60 × 11,796.24
  4. Step 4: Simplify right side
    20,748.72x = 337,780,613.90
  5. Step 5: Solve for x
    x = 337,780,613.90/20,748.72
  6. Step 6: Final answer
    x = 16,279.59

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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.