Home / 21,073.58-29,082.13-11,642.75

Finding the Fourth Proportional to 21,073.58, 29,082.13 and 11,642.75

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Solution

The fourth proportional to 21,073.58, 29,082.13 and 11,642.75 is: 16,067.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,073.58 : 29,082.13 = 11,642.75 : x
  2. Step 2: Convert to fraction form
    21,073.58/29,082.13 = 11,642.75/x
  3. Step 3: Cross multiply
    21,073.58x = 29,082.13 × 11,642.75
  4. Step 4: Simplify right side
    21,073.58x = 338,595,838.14
  5. Step 5: Solve for x
    x = 338,595,838.14/21,073.58
  6. Step 6: Final answer
    x = 16,067.32

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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.