Home / 20,195.42-27,874.28-13,109.54

Finding the Fourth Proportional to 20,195.42, 27,874.28 and 13,109.54

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Solution

The fourth proportional to 20,195.42, 27,874.28 and 13,109.54 is: 18,094.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,195.42 : 27,874.28 = 13,109.54 : x
  2. Step 2: Convert to fraction form
    20,195.42/27,874.28 = 13,109.54/x
  3. Step 3: Cross multiply
    20,195.42x = 27,874.28 × 13,109.54
  4. Step 4: Simplify right side
    20,195.42x = 365,418,923.08
  5. Step 5: Solve for x
    x = 365,418,923.08/20,195.42
  6. Step 6: Final answer
    x = 18,094.15

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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.