Home / 21,625.26-29,842.86-11,689.26

Finding the Fourth Proportional to 21,625.26, 29,842.86 and 11,689.26

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Solution

The fourth proportional to 21,625.26, 29,842.86 and 11,689.26 is: 16,131.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,625.26 : 29,842.86 = 11,689.26 : x
  2. Step 2: Convert to fraction form
    21,625.26/29,842.86 = 11,689.26/x
  3. Step 3: Cross multiply
    21,625.26x = 29,842.86 × 11,689.26
  4. Step 4: Simplify right side
    21,625.26x = 348,840,949.68
  5. Step 5: Solve for x
    x = 348,840,949.68/21,625.26
  6. Step 6: Final answer
    x = 16,131.18

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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.