Home / 20,543.82-30,796.56-11,169.96

Finding the Fourth Proportional to 20,543.82, 30,796.56 and 11,169.96

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Solution

The fourth proportional to 20,543.82, 30,796.56 and 11,169.96 is: 16,744.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,543.82 : 30,796.56 = 11,169.96 : x
  2. Step 2: Convert to fraction form
    20,543.82/30,796.56 = 11,169.96/x
  3. Step 3: Cross multiply
    20,543.82x = 30,796.56 × 11,169.96
  4. Step 4: Simplify right side
    20,543.82x = 343,996,343.34
  5. Step 5: Solve for x
    x = 343,996,343.34/20,543.82
  6. Step 6: Final answer
    x = 16,744.52

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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.