Home / 21,180.44-31,758.24-18,062.12

Finding the Fourth Proportional to 21,180.44, 31,758.24 and 18,062.12

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Solution

The fourth proportional to 21,180.44, 31,758.24 and 18,062.12 is: 27,082.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,180.44 : 31,758.24 = 18,062.12 : x
  2. Step 2: Convert to fraction form
    21,180.44/31,758.24 = 18,062.12/x
  3. Step 3: Cross multiply
    21,180.44x = 31,758.24 × 18,062.12
  4. Step 4: Simplify right side
    21,180.44x = 573,621,141.87
  5. Step 5: Solve for x
    x = 573,621,141.87/21,180.44
  6. Step 6: Final answer
    x = 27,082.59

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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.