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Finding the Fourth Proportional to 26,404.35, 39,581.70 and 8,861.88

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Solution

The fourth proportional to 26,404.35, 39,581.70 and 8,861.88 is: 13,284.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,404.35 : 39,581.70 = 8,861.88 : x
  2. Step 2: Convert to fraction form
    26,404.35/39,581.70 = 8,861.88/x
  3. Step 3: Cross multiply
    26,404.35x = 39,581.70 × 8,861.88
  4. Step 4: Simplify right side
    26,404.35x = 350,768,275.60
  5. Step 5: Solve for x
    x = 350,768,275.60/26,404.35
  6. Step 6: Final answer
    x = 13,284.49

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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.