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Finding the Fourth Proportional to 28,604.64, 42,914.08 and 8,882.88

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Solution

The fourth proportional to 28,604.64, 42,914.08 and 8,882.88 is: 13,326.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,604.64 : 42,914.08 = 8,882.88 : x
  2. Step 2: Convert to fraction form
    28,604.64/42,914.08 = 8,882.88/x
  3. Step 3: Cross multiply
    28,604.64x = 42,914.08 × 8,882.88
  4. Step 4: Simplify right side
    28,604.64x = 381,200,622.95
  5. Step 5: Solve for x
    x = 381,200,622.95/28,604.64
  6. Step 6: Final answer
    x = 13,326.53

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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.