Home / 33,086.94-45,642.87-20,489.82

Finding the Fourth Proportional to 33,086.94, 45,642.87 and 20,489.82

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Solution

The fourth proportional to 33,086.94, 45,642.87 and 20,489.82 is: 28,265.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,086.94 : 45,642.87 = 20,489.82 : x
  2. Step 2: Convert to fraction form
    33,086.94/45,642.87 = 20,489.82/x
  3. Step 3: Cross multiply
    33,086.94x = 45,642.87 × 20,489.82
  4. Step 4: Simplify right side
    33,086.94x = 935,214,190.58
  5. Step 5: Solve for x
    x = 935,214,190.58/33,086.94
  6. Step 6: Final answer
    x = 28,265.36

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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.