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Finding the Fourth Proportional to 26,668.52, 40,002.80 and 8,200.52

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Solution

The fourth proportional to 26,668.52, 40,002.80 and 8,200.52 is: 12,300.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,668.52 : 40,002.80 = 8,200.52 : x
  2. Step 2: Convert to fraction form
    26,668.52/40,002.80 = 8,200.52/x
  3. Step 3: Cross multiply
    26,668.52x = 40,002.80 × 8,200.52
  4. Step 4: Simplify right side
    26,668.52x = 328,043,761.46
  5. Step 5: Solve for x
    x = 328,043,761.46/26,668.52
  6. Step 6: Final answer
    x = 12,300.79

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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.