Home / 21,195.72-29,249.82-11,764.08

Finding the Fourth Proportional to 21,195.72, 29,249.82 and 11,764.08

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Solution

The fourth proportional to 21,195.72, 29,249.82 and 11,764.08 is: 16,234.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,195.72 : 29,249.82 = 11,764.08 : x
  2. Step 2: Convert to fraction form
    21,195.72/29,249.82 = 11,764.08/x
  3. Step 3: Cross multiply
    21,195.72x = 29,249.82 × 11,764.08
  4. Step 4: Simplify right side
    21,195.72x = 344,097,222.47
  5. Step 5: Solve for x
    x = 344,097,222.47/21,195.72
  6. Step 6: Final answer
    x = 16,234.28

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1.5x scale

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.