Home / 31,660.90-43,692.50-18,234.56

Finding the Fourth Proportional to 31,660.90, 43,692.50 and 18,234.56

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Solution

The fourth proportional to 31,660.90, 43,692.50 and 18,234.56 is: 25,163.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,660.90 : 43,692.50 = 18,234.56 : x
  2. Step 2: Convert to fraction form
    31,660.90/43,692.50 = 18,234.56/x
  3. Step 3: Cross multiply
    31,660.90x = 43,692.50 × 18,234.56
  4. Step 4: Simplify right side
    31,660.90x = 796,713,512.80
  5. Step 5: Solve for x
    x = 796,713,512.80/31,660.90
  6. Step 6: Final answer
    x = 25,163.96

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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.