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Finding the Fourth Proportional to 26,881.60, 40,336.80 and 12,092.80

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Solution

The fourth proportional to 26,881.60, 40,336.80 and 12,092.80 is: 18,145.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,881.60 : 40,336.80 = 12,092.80 : x
  2. Step 2: Convert to fraction form
    26,881.60/40,336.80 = 12,092.80/x
  3. Step 3: Cross multiply
    26,881.60x = 40,336.80 × 12,092.80
  4. Step 4: Simplify right side
    26,881.60x = 487,784,855.04
  5. Step 5: Solve for x
    x = 487,784,855.04/26,881.60
  6. Step 6: Final answer
    x = 18,145.68

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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.