Home / 21,046.13-29,043.82-11,486.09

Finding the Fourth Proportional to 21,046.13, 29,043.82 and 11,486.09

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Solution

The fourth proportional to 21,046.13, 29,043.82 and 11,486.09 is: 15,850.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,046.13 : 29,043.82 = 11,486.09 : x
  2. Step 2: Convert to fraction form
    21,046.13/29,043.82 = 11,486.09/x
  3. Step 3: Cross multiply
    21,046.13x = 29,043.82 × 11,486.09
  4. Step 4: Simplify right side
    21,046.13x = 333,599,785.24
  5. Step 5: Solve for x
    x = 333,599,785.24/21,046.13
  6. Step 6: Final answer
    x = 15,850.89

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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.