Home / 38,366.32-57,478.16-20,850.88

Finding the Fourth Proportional to 38,366.32, 57,478.16 and 20,850.88

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Solution

The fourth proportional to 38,366.32, 57,478.16 and 20,850.88 is: 31,237.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,366.32 : 57,478.16 = 20,850.88 : x
  2. Step 2: Convert to fraction form
    38,366.32/57,478.16 = 20,850.88/x
  3. Step 3: Cross multiply
    38,366.32x = 57,478.16 × 20,850.88
  4. Step 4: Simplify right side
    38,366.32x = 1,198,470,216.78
  5. Step 5: Solve for x
    x = 1,198,470,216.78/38,366.32
  6. Step 6: Final answer
    x = 31,237.56

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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.