Home / 21,076.36-29,082.90-11,644.36

Finding the Fourth Proportional to 21,076.36, 29,082.90 and 11,644.36

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Solution

The fourth proportional to 21,076.36, 29,082.90 and 11,644.36 is: 16,067.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,076.36 : 29,082.90 = 11,644.36 : x
  2. Step 2: Convert to fraction form
    21,076.36/29,082.90 = 11,644.36/x
  3. Step 3: Cross multiply
    21,076.36x = 29,082.90 × 11,644.36
  4. Step 4: Simplify right side
    21,076.36x = 338,651,757.44
  5. Step 5: Solve for x
    x = 338,651,757.44/21,076.36
  6. Step 6: Final answer
    x = 16,067.85

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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.