Home / 33,080.13-45,650.25-18,738.90

Finding the Fourth Proportional to 33,080.13, 45,650.25 and 18,738.90

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Solution

The fourth proportional to 33,080.13, 45,650.25 and 18,738.90 is: 25,859.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,080.13 : 45,650.25 = 18,738.90 : x
  2. Step 2: Convert to fraction form
    33,080.13/45,650.25 = 18,738.90/x
  3. Step 3: Cross multiply
    33,080.13x = 45,650.25 × 18,738.90
  4. Step 4: Simplify right side
    33,080.13x = 855,435,469.73
  5. Step 5: Solve for x
    x = 855,435,469.73/33,080.13
  6. Step 6: Final answer
    x = 25,859.50

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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.