Home / 21,137.88-29,167.92-11,704.08

Finding the Fourth Proportional to 21,137.88, 29,167.92 and 11,704.08

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Solution

The fourth proportional to 21,137.88, 29,167.92 and 11,704.08 is: 16,150.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,137.88 : 29,167.92 = 11,704.08 : x
  2. Step 2: Convert to fraction form
    21,137.88/29,167.92 = 11,704.08/x
  3. Step 3: Cross multiply
    21,137.88x = 29,167.92 × 11,704.08
  4. Step 4: Simplify right side
    21,137.88x = 341,383,669.11
  5. Step 5: Solve for x
    x = 341,383,669.11/21,137.88
  6. Step 6: Final answer
    x = 16,150.33

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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.