Home / 21,464.94-29,591.37-18,512.22

Finding the Fourth Proportional to 21,464.94, 29,591.37 and 18,512.22

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Solution

The fourth proportional to 21,464.94, 29,591.37 and 18,512.22 is: 25,520.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,464.94 : 29,591.37 = 18,512.22 : x
  2. Step 2: Convert to fraction form
    21,464.94/29,591.37 = 18,512.22/x
  3. Step 3: Cross multiply
    21,464.94x = 29,591.37 × 18,512.22
  4. Step 4: Simplify right side
    21,464.94x = 547,801,951.54
  5. Step 5: Solve for x
    x = 547,801,951.54/21,464.94
  6. Step 6: Final answer
    x = 25,520.78

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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.