Home / 38,138.16-57,243.84-15,945.60

Finding the Fourth Proportional to 38,138.16, 57,243.84 and 15,945.60

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Solution

The fourth proportional to 38,138.16, 57,243.84 and 15,945.60 is: 23,933.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,138.16 : 57,243.84 = 15,945.60 : x
  2. Step 2: Convert to fraction form
    38,138.16/57,243.84 = 15,945.60/x
  3. Step 3: Cross multiply
    38,138.16x = 57,243.84 × 15,945.60
  4. Step 4: Simplify right side
    38,138.16x = 912,787,375.10
  5. Step 5: Solve for x
    x = 912,787,375.10/38,138.16
  6. Step 6: Final answer
    x = 23,933.70

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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.