Home / 20,119.11-27,791.87-16,338.03

Finding the Fourth Proportional to 20,119.11, 27,791.87 and 16,338.03

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Solution

The fourth proportional to 20,119.11, 27,791.87 and 16,338.03 is: 22,568.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,119.11 : 27,791.87 = 16,338.03 : x
  2. Step 2: Convert to fraction form
    20,119.11/27,791.87 = 16,338.03/x
  3. Step 3: Cross multiply
    20,119.11x = 27,791.87 × 16,338.03
  4. Step 4: Simplify right side
    20,119.11x = 454,064,405.82
  5. Step 5: Solve for x
    x = 454,064,405.82/20,119.11
  6. Step 6: Final answer
    x = 22,568.81

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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.