Home / 31,380.54-43,305.22-17,234.30

Finding the Fourth Proportional to 31,380.54, 43,305.22 and 17,234.30

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Solution

The fourth proportional to 31,380.54, 43,305.22 and 17,234.30 is: 23,783.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,380.54 : 43,305.22 = 17,234.30 : x
  2. Step 2: Convert to fraction form
    31,380.54/43,305.22 = 17,234.30/x
  3. Step 3: Cross multiply
    31,380.54x = 43,305.22 × 17,234.30
  4. Step 4: Simplify right side
    31,380.54x = 746,335,153.05
  5. Step 5: Solve for x
    x = 746,335,153.05/31,380.54
  6. Step 6: Final answer
    x = 23,783.38

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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.