Home / 21,550.26-29,743-12,474.30

Finding the Fourth Proportional to 21,550.26, 29,743 and 12,474.30

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Solution

The fourth proportional to 21,550.26, 29,743 and 12,474.30 is: 17,216.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,550.26 : 29,743 = 12,474.30 : x
  2. Step 2: Convert to fraction form
    21,550.26/29,743 = 12,474.30/x
  3. Step 3: Cross multiply
    21,550.26x = 29,743 × 12,474.30
  4. Step 4: Simplify right side
    21,550.26x = 371,023,104.90
  5. Step 5: Solve for x
    x = 371,023,104.90/21,550.26
  6. Step 6: Final answer
    x = 17,216.64

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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.