Home / 38,480.50-57,729.41-13,522.28

Finding the Fourth Proportional to 38,480.50, 57,729.41 and 13,522.28

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Solution

The fourth proportional to 38,480.50, 57,729.41 and 13,522.28 is: 20,286.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,480.50 : 57,729.41 = 13,522.28 : x
  2. Step 2: Convert to fraction form
    38,480.50/57,729.41 = 13,522.28/x
  3. Step 3: Cross multiply
    38,480.50x = 57,729.41 × 13,522.28
  4. Step 4: Simplify right side
    38,480.50x = 780,632,940.70
  5. Step 5: Solve for x
    x = 780,632,940.70/38,480.50
  6. Step 6: Final answer
    x = 20,286.45

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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.