Home / 20,241.76-27,917.85-13,170.46

Finding the Fourth Proportional to 20,241.76, 27,917.85 and 13,170.46

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Solution

The fourth proportional to 20,241.76, 27,917.85 and 13,170.46 is: 18,164.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,241.76 : 27,917.85 = 13,170.46 : x
  2. Step 2: Convert to fraction form
    20,241.76/27,917.85 = 13,170.46/x
  3. Step 3: Cross multiply
    20,241.76x = 27,917.85 × 13,170.46
  4. Step 4: Simplify right side
    20,241.76x = 367,690,926.71
  5. Step 5: Solve for x
    x = 367,690,926.71/20,241.76
  6. Step 6: Final answer
    x = 18,164.97

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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.