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Finding the Fourth Proportional to 30,440.56, 45,660.84 and 8,253.96

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Solution

The fourth proportional to 30,440.56, 45,660.84 and 8,253.96 is: 12,380.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,440.56 : 45,660.84 = 8,253.96 : x
  2. Step 2: Convert to fraction form
    30,440.56/45,660.84 = 8,253.96/x
  3. Step 3: Cross multiply
    30,440.56x = 45,660.84 × 8,253.96
  4. Step 4: Simplify right side
    30,440.56x = 376,882,746.93
  5. Step 5: Solve for x
    x = 376,882,746.93/30,440.56
  6. Step 6: Final answer
    x = 12,380.94

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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.