Home / 21,167.72-29,212.62-11,736.08

Finding the Fourth Proportional to 21,167.72, 29,212.62 and 11,736.08

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Solution

The fourth proportional to 21,167.72, 29,212.62 and 11,736.08 is: 16,196.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,167.72 : 29,212.62 = 11,736.08 : x
  2. Step 2: Convert to fraction form
    21,167.72/29,212.62 = 11,736.08/x
  3. Step 3: Cross multiply
    21,167.72x = 29,212.62 × 11,736.08
  4. Step 4: Simplify right side
    21,167.72x = 342,841,645.33
  5. Step 5: Solve for x
    x = 342,841,645.33/21,167.72
  6. Step 6: Final answer
    x = 16,196.44

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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.