Home / 21,195.90-29,249.04-11,764.50

Finding the Fourth Proportional to 21,195.90, 29,249.04 and 11,764.50

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Solution

The fourth proportional to 21,195.90, 29,249.04 and 11,764.50 is: 16,234.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,195.90 : 29,249.04 = 11,764.50 : x
  2. Step 2: Convert to fraction form
    21,195.90/29,249.04 = 11,764.50/x
  3. Step 3: Cross multiply
    21,195.90x = 29,249.04 × 11,764.50
  4. Step 4: Simplify right side
    21,195.90x = 344,100,331.08
  5. Step 5: Solve for x
    x = 344,100,331.08/21,195.90
  6. Step 6: Final answer
    x = 16,234.29

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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.