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Finding the Fourth Proportional to 20,034.88, 30,050.88 and 8,942.56

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Solution

The fourth proportional to 20,034.88, 30,050.88 and 8,942.56 is: 13,413.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,034.88 : 30,050.88 = 8,942.56 : x
  2. Step 2: Convert to fraction form
    20,034.88/30,050.88 = 8,942.56/x
  3. Step 3: Cross multiply
    20,034.88x = 30,050.88 × 8,942.56
  4. Step 4: Simplify right side
    20,034.88x = 268,731,797.45
  5. Step 5: Solve for x
    x = 268,731,797.45/20,034.88
  6. Step 6: Final answer
    x = 13,413.20

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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.