Home / 20,241.38-27,935.54-11,857.88

Finding the Fourth Proportional to 20,241.38, 27,935.54 and 11,857.88

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Solution

The fourth proportional to 20,241.38, 27,935.54 and 11,857.88 is: 16,365.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,241.38 : 27,935.54 = 11,857.88 : x
  2. Step 2: Convert to fraction form
    20,241.38/27,935.54 = 11,857.88/x
  3. Step 3: Cross multiply
    20,241.38x = 27,935.54 × 11,857.88
  4. Step 4: Simplify right side
    20,241.38x = 331,256,082.09
  5. Step 5: Solve for x
    x = 331,256,082.09/20,241.38
  6. Step 6: Final answer
    x = 16,365.30

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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.