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Finding the Fourth Proportional to 27,328.20, 40,992.03 and 8,860.20

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Solution

The fourth proportional to 27,328.20, 40,992.03 and 8,860.20 is: 13,290.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,328.20 : 40,992.03 = 8,860.20 : x
  2. Step 2: Convert to fraction form
    27,328.20/40,992.03 = 8,860.20/x
  3. Step 3: Cross multiply
    27,328.20x = 40,992.03 × 8,860.20
  4. Step 4: Simplify right side
    27,328.20x = 363,197,584.21
  5. Step 5: Solve for x
    x = 363,197,584.21/27,328.20
  6. Step 6: Final answer
    x = 13,290.21

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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.