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Finding the Fourth Proportional to 34,680.42, 52,020.77 and 8,385.12

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Solution

The fourth proportional to 34,680.42, 52,020.77 and 8,385.12 is: 12,577.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,680.42 : 52,020.77 = 8,385.12 : x
  2. Step 2: Convert to fraction form
    34,680.42/52,020.77 = 8,385.12/x
  3. Step 3: Cross multiply
    34,680.42x = 52,020.77 × 8,385.12
  4. Step 4: Simplify right side
    34,680.42x = 436,200,357.02
  5. Step 5: Solve for x
    x = 436,200,357.02/34,680.42
  6. Step 6: Final answer
    x = 12,577.71

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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.