Home / 21,190.68-29,245.62-11,759.85

Finding the Fourth Proportional to 21,190.68, 29,245.62 and 11,759.85

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Solution

The fourth proportional to 21,190.68, 29,245.62 and 11,759.85 is: 16,229.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,190.68 : 29,245.62 = 11,759.85 : x
  2. Step 2: Convert to fraction form
    21,190.68/29,245.62 = 11,759.85/x
  3. Step 3: Cross multiply
    21,190.68x = 29,245.62 × 11,759.85
  4. Step 4: Simplify right side
    21,190.68x = 343,924,104.36
  5. Step 5: Solve for x
    x = 343,924,104.36/21,190.68
  6. Step 6: Final answer
    x = 16,229.97

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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.