Home / 21,163.22-29,205.33-11,731.94

Finding the Fourth Proportional to 21,163.22, 29,205.33 and 11,731.94

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Solution

The fourth proportional to 21,163.22, 29,205.33 and 11,731.94 is: 16,190.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,163.22 : 29,205.33 = 11,731.94 : x
  2. Step 2: Convert to fraction form
    21,163.22/29,205.33 = 11,731.94/x
  3. Step 3: Cross multiply
    21,163.22x = 29,205.33 × 11,731.94
  4. Step 4: Simplify right side
    21,163.22x = 342,635,179.24
  5. Step 5: Solve for x
    x = 342,635,179.24/21,163.22
  6. Step 6: Final answer
    x = 16,190.13

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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.