Home / 38,629.45-57,953.21-11,974.05

Finding the Fourth Proportional to 38,629.45, 57,953.21 and 11,974.05

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Solution

The fourth proportional to 38,629.45, 57,953.21 and 11,974.05 is: 17,963.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,629.45 : 57,953.21 = 11,974.05 : x
  2. Step 2: Convert to fraction form
    38,629.45/57,953.21 = 11,974.05/x
  3. Step 3: Cross multiply
    38,629.45x = 57,953.21 × 11,974.05
  4. Step 4: Simplify right side
    38,629.45x = 693,934,634.20
  5. Step 5: Solve for x
    x = 693,934,634.20/38,629.45
  6. Step 6: Final answer
    x = 17,963.88

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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.