Home / 33,121.44-45,709.92-18,977.76

Finding the Fourth Proportional to 33,121.44, 45,709.92 and 18,977.76

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Solution

The fourth proportional to 33,121.44, 45,709.92 and 18,977.76 is: 26,190.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,121.44 : 45,709.92 = 18,977.76 : x
  2. Step 2: Convert to fraction form
    33,121.44/45,709.92 = 18,977.76/x
  3. Step 3: Cross multiply
    33,121.44x = 45,709.92 × 18,977.76
  4. Step 4: Simplify right side
    33,121.44x = 867,471,891.38
  5. Step 5: Solve for x
    x = 867,471,891.38/33,121.44
  6. Step 6: Final answer
    x = 26,190.65

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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.