Home / 20,189.26-27,845.40-13,117.96

Finding the Fourth Proportional to 20,189.26, 27,845.40 and 13,117.96

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Solution

The fourth proportional to 20,189.26, 27,845.40 and 13,117.96 is: 18,092.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,189.26 : 27,845.40 = 13,117.96 : x
  2. Step 2: Convert to fraction form
    20,189.26/27,845.40 = 13,117.96/x
  3. Step 3: Cross multiply
    20,189.26x = 27,845.40 × 13,117.96
  4. Step 4: Simplify right side
    20,189.26x = 365,274,843.38
  5. Step 5: Solve for x
    x = 365,274,843.38/20,189.26
  6. Step 6: Final answer
    x = 18,092.53

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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.