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Finding the Fourth Proportional to 38,508.56, 57,764.88 and 10,808.72

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Solution

The fourth proportional to 38,508.56, 57,764.88 and 10,808.72 is: 16,213.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,508.56 : 57,764.88 = 10,808.72 : x
  2. Step 2: Convert to fraction form
    38,508.56/57,764.88 = 10,808.72/x
  3. Step 3: Cross multiply
    38,508.56x = 57,764.88 × 10,808.72
  4. Step 4: Simplify right side
    38,508.56x = 624,364,413.75
  5. Step 5: Solve for x
    x = 624,364,413.75/38,508.56
  6. Step 6: Final answer
    x = 16,213.65

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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.