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Finding the Fourth Proportional to 38,099.56, 57,121.65 and 15,919.28

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Solution

The fourth proportional to 38,099.56, 57,121.65 and 15,919.28 is: 23,867.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,099.56 : 57,121.65 = 15,919.28 : x
  2. Step 2: Convert to fraction form
    38,099.56/57,121.65 = 15,919.28/x
  3. Step 3: Cross multiply
    38,099.56x = 57,121.65 × 15,919.28
  4. Step 4: Simplify right side
    38,099.56x = 909,335,540.41
  5. Step 5: Solve for x
    x = 909,335,540.41/38,099.56
  6. Step 6: Final answer
    x = 23,867.35

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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.