Home / 21,029.67-29,020.97-11,469.57

Finding the Fourth Proportional to 21,029.67, 29,020.97 and 11,469.57

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Solution

The fourth proportional to 21,029.67, 29,020.97 and 11,469.57 is: 15,828.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,029.67 : 29,020.97 = 11,469.57 : x
  2. Step 2: Convert to fraction form
    21,029.67/29,020.97 = 11,469.57/x
  3. Step 3: Cross multiply
    21,029.67x = 29,020.97 × 11,469.57
  4. Step 4: Simplify right side
    21,029.67x = 332,858,046.88
  5. Step 5: Solve for x
    x = 332,858,046.88/21,029.67
  6. Step 6: Final answer
    x = 15,828.02

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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.