Home / 20,543.45-30,796.00-11,169.59

Finding the Fourth Proportional to 20,543.45, 30,796.00 and 11,169.59

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Solution

The fourth proportional to 20,543.45, 30,796.00 and 11,169.59 is: 16,743.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,543.45 : 30,796.00 = 11,169.59 : x
  2. Step 2: Convert to fraction form
    20,543.45/30,796.00 = 11,169.59/x
  3. Step 3: Cross multiply
    20,543.45x = 30,796.00 × 11,169.59
  4. Step 4: Simplify right side
    20,543.45x = 343,978,511.74
  5. Step 5: Solve for x
    x = 343,978,511.74/20,543.45
  6. Step 6: Final answer
    x = 16,743.95

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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.