Home / 33,180.95-45,786.39-20,432.09

Finding the Fourth Proportional to 33,180.95, 45,786.39 and 20,432.09

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Solution

The fourth proportional to 33,180.95, 45,786.39 and 20,432.09 is: 28,194.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,180.95 : 45,786.39 = 20,432.09 : x
  2. Step 2: Convert to fraction form
    33,180.95/45,786.39 = 20,432.09/x
  3. Step 3: Cross multiply
    33,180.95x = 45,786.39 × 20,432.09
  4. Step 4: Simplify right side
    33,180.95x = 935,511,641.26
  5. Step 5: Solve for x
    x = 935,511,641.26/33,180.95
  6. Step 6: Final answer
    x = 28,194.24

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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.