Home / 21,224.97-29,290.68-11,665.71

Finding the Fourth Proportional to 21,224.97, 29,290.68 and 11,665.71

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Solution

The fourth proportional to 21,224.97, 29,290.68 and 11,665.71 is: 16,098.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,224.97 : 29,290.68 = 11,665.71 : x
  2. Step 2: Convert to fraction form
    21,224.97/29,290.68 = 11,665.71/x
  3. Step 3: Cross multiply
    21,224.97x = 29,290.68 × 11,665.71
  4. Step 4: Simplify right side
    21,224.97x = 341,696,578.58
  5. Step 5: Solve for x
    x = 341,696,578.58/21,224.97
  6. Step 6: Final answer
    x = 16,098.80

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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.