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Finding the Fourth Proportional to 27,155.23, 40,724.85 and 8,179.09

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Solution

The fourth proportional to 27,155.23, 40,724.85 and 8,179.09 is: 12,266.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,155.23 : 40,724.85 = 8,179.09 : x
  2. Step 2: Convert to fraction form
    27,155.23/40,724.85 = 8,179.09/x
  3. Step 3: Cross multiply
    27,155.23x = 40,724.85 × 8,179.09
  4. Step 4: Simplify right side
    27,155.23x = 333,092,213.39
  5. Step 5: Solve for x
    x = 333,092,213.39/27,155.23
  6. Step 6: Final answer
    x = 12,266.23

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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.