Home / 43,578.31-65,367.48-13,998.55

Finding the Fourth Proportional to 43,578.31, 65,367.48 and 13,998.55

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Solution

The fourth proportional to 43,578.31, 65,367.48 and 13,998.55 is: 20,997.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,578.31 : 65,367.48 = 13,998.55 : x
  2. Step 2: Convert to fraction form
    43,578.31/65,367.48 = 13,998.55/x
  3. Step 3: Cross multiply
    43,578.31x = 65,367.48 × 13,998.55
  4. Step 4: Simplify right side
    43,578.31x = 915,049,937.15
  5. Step 5: Solve for x
    x = 915,049,937.15/43,578.31
  6. Step 6: Final answer
    x = 20,997.83

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Double scale
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Similar ratio
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1.5x scale

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.