Home / 20,251.68-27,954.08-11,868

Finding the Fourth Proportional to 20,251.68, 27,954.08 and 11,868

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Solution

The fourth proportional to 20,251.68, 27,954.08 and 11,868 is: 16,381.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,251.68 : 27,954.08 = 11,868 : x
  2. Step 2: Convert to fraction form
    20,251.68/27,954.08 = 11,868/x
  3. Step 3: Cross multiply
    20,251.68x = 27,954.08 × 11,868
  4. Step 4: Simplify right side
    20,251.68x = 331,759,021.44
  5. Step 5: Solve for x
    x = 331,759,021.44/20,251.68
  6. Step 6: Final answer
    x = 16,381.80

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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.