Home / 20,241.64-27,940.26-13,872.04

Finding the Fourth Proportional to 20,241.64, 27,940.26 and 13,872.04

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Solution

The fourth proportional to 20,241.64, 27,940.26 and 13,872.04 is: 19,148.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,241.64 : 27,940.26 = 13,872.04 : x
  2. Step 2: Convert to fraction form
    20,241.64/27,940.26 = 13,872.04/x
  3. Step 3: Cross multiply
    20,241.64x = 27,940.26 × 13,872.04
  4. Step 4: Simplify right side
    20,241.64x = 387,588,404.33
  5. Step 5: Solve for x
    x = 387,588,404.33/20,241.64
  6. Step 6: Final answer
    x = 19,148.07

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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.