Home / 29,790.66-41,082.15-20,121.36

Finding the Fourth Proportional to 29,790.66, 41,082.15 and 20,121.36

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Solution

The fourth proportional to 29,790.66, 41,082.15 and 20,121.36 is: 27,747.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,790.66 : 41,082.15 = 20,121.36 : x
  2. Step 2: Convert to fraction form
    29,790.66/41,082.15 = 20,121.36/x
  3. Step 3: Cross multiply
    29,790.66x = 41,082.15 × 20,121.36
  4. Step 4: Simplify right side
    29,790.66x = 826,628,729.72
  5. Step 5: Solve for x
    x = 826,628,729.72/29,790.66
  6. Step 6: Final answer
    x = 27,747.92

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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.