Home / 21,761.75-30,033.74-12,204.26

Finding the Fourth Proportional to 21,761.75, 30,033.74 and 12,204.26

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Solution

The fourth proportional to 21,761.75, 30,033.74 and 12,204.26 is: 16,843.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,761.75 : 30,033.74 = 12,204.26 : x
  2. Step 2: Convert to fraction form
    21,761.75/30,033.74 = 12,204.26/x
  3. Step 3: Cross multiply
    21,761.75x = 30,033.74 × 12,204.26
  4. Step 4: Simplify right side
    21,761.75x = 366,539,360.54
  5. Step 5: Solve for x
    x = 366,539,360.54/21,761.75
  6. Step 6: Final answer
    x = 16,843.29

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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.