Home / 21,081.35-29,092.19-11,649.89

Finding the Fourth Proportional to 21,081.35, 29,092.19 and 11,649.89

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Solution

The fourth proportional to 21,081.35, 29,092.19 and 11,649.89 is: 16,076.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,081.35 : 29,092.19 = 11,649.89 : x
  2. Step 2: Convert to fraction form
    21,081.35/29,092.19 = 11,649.89/x
  3. Step 3: Cross multiply
    21,081.35x = 29,092.19 × 11,649.89
  4. Step 4: Simplify right side
    21,081.35x = 338,920,609.65
  5. Step 5: Solve for x
    x = 338,920,609.65/21,081.35
  6. Step 6: Final answer
    x = 16,076.80

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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.