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Finding the Fourth Proportional to 27,940.86, 41,910.03 and 8,220.06

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Solution

The fourth proportional to 27,940.86, 41,910.03 and 8,220.06 is: 12,329.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,940.86 : 41,910.03 = 8,220.06 : x
  2. Step 2: Convert to fraction form
    27,940.86/41,910.03 = 8,220.06/x
  3. Step 3: Cross multiply
    27,940.86x = 41,910.03 × 8,220.06
  4. Step 4: Simplify right side
    27,940.86x = 344,502,961.20
  5. Step 5: Solve for x
    x = 344,502,961.20/27,940.86
  6. Step 6: Final answer
    x = 12,329.72

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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.