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Finding the Fourth Proportional to 27,999.84, 41,999.49 and 8,278.77

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Solution

The fourth proportional to 27,999.84, 41,999.49 and 8,278.77 is: 12,418.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,999.84 : 41,999.49 = 8,278.77 : x
  2. Step 2: Convert to fraction form
    27,999.84/41,999.49 = 8,278.77/x
  3. Step 3: Cross multiply
    27,999.84x = 41,999.49 × 8,278.77
  4. Step 4: Simplify right side
    27,999.84x = 347,704,117.83
  5. Step 5: Solve for x
    x = 347,704,117.83/27,999.84
  6. Step 6: Final answer
    x = 12,418.08

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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.