Home / 21,229.53-29,296.42-11,669.21

Finding the Fourth Proportional to 21,229.53, 29,296.42 and 11,669.21

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Solution

The fourth proportional to 21,229.53, 29,296.42 and 11,669.21 is: 16,103.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,229.53 : 29,296.42 = 11,669.21 : x
  2. Step 2: Convert to fraction form
    21,229.53/29,296.42 = 11,669.21/x
  3. Step 3: Cross multiply
    21,229.53x = 29,296.42 × 11,669.21
  4. Step 4: Simplify right side
    21,229.53x = 341,866,159.47
  5. Step 5: Solve for x
    x = 341,866,159.47/21,229.53
  6. Step 6: Final answer
    x = 16,103.33

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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.