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Finding the Fourth Proportional to 27,069.78, 40,609.05 and 8,345.44

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Solution

The fourth proportional to 27,069.78, 40,609.05 and 8,345.44 is: 12,519.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,069.78 : 40,609.05 = 8,345.44 : x
  2. Step 2: Convert to fraction form
    27,069.78/40,609.05 = 8,345.44/x
  3. Step 3: Cross multiply
    27,069.78x = 40,609.05 × 8,345.44
  4. Step 4: Simplify right side
    27,069.78x = 338,900,288.71
  5. Step 5: Solve for x
    x = 338,900,288.71/27,069.78
  6. Step 6: Final answer
    x = 12,519.51

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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.