Home / 21,046.72-29,044.42-11,615.22

Finding the Fourth Proportional to 21,046.72, 29,044.42 and 11,615.22

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Solution

The fourth proportional to 21,046.72, 29,044.42 and 11,615.22 is: 16,028.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,046.72 : 29,044.42 = 11,615.22 : x
  2. Step 2: Convert to fraction form
    21,046.72/29,044.42 = 11,615.22/x
  3. Step 3: Cross multiply
    21,046.72x = 29,044.42 × 11,615.22
  4. Step 4: Simplify right side
    21,046.72x = 337,357,328.07
  5. Step 5: Solve for x
    x = 337,357,328.07/21,046.72
  6. Step 6: Final answer
    x = 16,028.97

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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.