Home / 38,127.44-57,198.78-13,168.40

Finding the Fourth Proportional to 38,127.44, 57,198.78 and 13,168.40

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Solution

The fourth proportional to 38,127.44, 57,198.78 and 13,168.40 is: 19,755.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,127.44 : 57,198.78 = 13,168.40 : x
  2. Step 2: Convert to fraction form
    38,127.44/57,198.78 = 13,168.40/x
  3. Step 3: Cross multiply
    38,127.44x = 57,198.78 × 13,168.40
  4. Step 4: Simplify right side
    38,127.44x = 753,216,414.55
  5. Step 5: Solve for x
    x = 753,216,414.55/38,127.44
  6. Step 6: Final answer
    x = 19,755.23

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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.