Home / 21,253.26-29,329.41-11,821.82

Finding the Fourth Proportional to 21,253.26, 29,329.41 and 11,821.82

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Solution

The fourth proportional to 21,253.26, 29,329.41 and 11,821.82 is: 16,314.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,253.26 : 29,329.41 = 11,821.82 : x
  2. Step 2: Convert to fraction form
    21,253.26/29,329.41 = 11,821.82/x
  3. Step 3: Cross multiply
    21,253.26x = 29,329.41 × 11,821.82
  4. Step 4: Simplify right side
    21,253.26x = 346,727,005.73
  5. Step 5: Solve for x
    x = 346,727,005.73/21,253.26
  6. Step 6: Final answer
    x = 16,314.06

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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.