Home / 20,195.26-27,853.68-13,123.96

Finding the Fourth Proportional to 20,195.26, 27,853.68 and 13,123.96

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Solution

The fourth proportional to 20,195.26, 27,853.68 and 13,123.96 is: 18,100.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,195.26 : 27,853.68 = 13,123.96 : x
  2. Step 2: Convert to fraction form
    20,195.26/27,853.68 = 13,123.96/x
  3. Step 3: Cross multiply
    20,195.26x = 27,853.68 × 13,123.96
  4. Step 4: Simplify right side
    20,195.26x = 365,550,582.17
  5. Step 5: Solve for x
    x = 365,550,582.17/20,195.26
  6. Step 6: Final answer
    x = 18,100.81

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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.