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Finding the Fourth Proportional to 27,217.88, 40,826.81 and 8,749.88

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Solution

The fourth proportional to 27,217.88, 40,826.81 and 8,749.88 is: 13,124.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,217.88 : 40,826.81 = 8,749.88 : x
  2. Step 2: Convert to fraction form
    27,217.88/40,826.81 = 8,749.88/x
  3. Step 3: Cross multiply
    27,217.88x = 40,826.81 × 8,749.88
  4. Step 4: Simplify right side
    27,217.88x = 357,229,506.02
  5. Step 5: Solve for x
    x = 357,229,506.02/27,217.88
  6. Step 6: Final answer
    x = 13,124.81

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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.