Home / 33,180.20-49,703.10-20,661.80

Finding the Fourth Proportional to 33,180.20, 49,703.10 and 20,661.80

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Solution

The fourth proportional to 33,180.20, 49,703.10 and 20,661.80 is: 30,950.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,180.20 : 49,703.10 = 20,661.80 : x
  2. Step 2: Convert to fraction form
    33,180.20/49,703.10 = 20,661.80/x
  3. Step 3: Cross multiply
    33,180.20x = 49,703.10 × 20,661.80
  4. Step 4: Simplify right side
    33,180.20x = 1,026,955,511.58
  5. Step 5: Solve for x
    x = 1,026,955,511.58/33,180.20
  6. Step 6: Final answer
    x = 30,950.85

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.