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Finding the Fourth Proportional to 25,900.20, 38,861.10 and 8,375.40

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Solution

The fourth proportional to 25,900.20, 38,861.10 and 8,375.40 is: 12,566.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,900.20 : 38,861.10 = 8,375.40 : x
  2. Step 2: Convert to fraction form
    25,900.20/38,861.10 = 8,375.40/x
  3. Step 3: Cross multiply
    25,900.20x = 38,861.10 × 8,375.40
  4. Step 4: Simplify right side
    25,900.20x = 325,477,256.94
  5. Step 5: Solve for x
    x = 325,477,256.94/25,900.20
  6. Step 6: Final answer
    x = 12,566.59

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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.