Home / 21,073.88-29,082.66-11,642.96

Finding the Fourth Proportional to 21,073.88, 29,082.66 and 11,642.96

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Solution

The fourth proportional to 21,073.88, 29,082.66 and 11,642.96 is: 16,067.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,073.88 : 29,082.66 = 11,642.96 : x
  2. Step 2: Convert to fraction form
    21,073.88/29,082.66 = 11,642.96/x
  3. Step 3: Cross multiply
    21,073.88x = 29,082.66 × 11,642.96
  4. Step 4: Simplify right side
    21,073.88x = 338,608,247.07
  5. Step 5: Solve for x
    x = 338,608,247.07/21,073.88
  6. Step 6: Final answer
    x = 16,067.67

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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.