Home / 21,272.33-29,354.63-11,711.82

Finding the Fourth Proportional to 21,272.33, 29,354.63 and 11,711.82

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Solution

The fourth proportional to 21,272.33, 29,354.63 and 11,711.82 is: 16,161.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,272.33 : 29,354.63 = 11,711.82 : x
  2. Step 2: Convert to fraction form
    21,272.33/29,354.63 = 11,711.82/x
  3. Step 3: Cross multiply
    21,272.33x = 29,354.63 × 11,711.82
  4. Step 4: Simplify right side
    21,272.33x = 343,796,084.17
  5. Step 5: Solve for x
    x = 343,796,084.17/21,272.33
  6. Step 6: Final answer
    x = 16,161.66

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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.