Home / 21,046.66-29,044.29-11,615.80

Finding the Fourth Proportional to 21,046.66, 29,044.29 and 11,615.80

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Solution

The fourth proportional to 21,046.66, 29,044.29 and 11,615.80 is: 16,029.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,046.66 : 29,044.29 = 11,615.80 : x
  2. Step 2: Convert to fraction form
    21,046.66/29,044.29 = 11,615.80/x
  3. Step 3: Cross multiply
    21,046.66x = 29,044.29 × 11,615.80
  4. Step 4: Simplify right side
    21,046.66x = 337,372,663.78
  5. Step 5: Solve for x
    x = 337,372,663.78/21,046.66
  6. Step 6: Final answer
    x = 16,029.75

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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.