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Finding the Fourth Proportional to 27,478.47, 41,220.95 and 8,751.99

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Solution

The fourth proportional to 27,478.47, 41,220.95 and 8,751.99 is: 13,129.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,478.47 : 41,220.95 = 8,751.99 : x
  2. Step 2: Convert to fraction form
    27,478.47/41,220.95 = 8,751.99/x
  3. Step 3: Cross multiply
    27,478.47x = 41,220.95 × 8,751.99
  4. Step 4: Simplify right side
    27,478.47x = 360,765,298.43
  5. Step 5: Solve for x
    x = 360,765,298.43/27,478.47
  6. Step 6: Final answer
    x = 13,129.02

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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.