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Finding the Fourth Proportional to 27,216.01, 40,812.94 and 8,489.76

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Solution

The fourth proportional to 27,216.01, 40,812.94 and 8,489.76 is: 12,731.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,216.01 : 40,812.94 = 8,489.76 : x
  2. Step 2: Convert to fraction form
    27,216.01/40,812.94 = 8,489.76/x
  3. Step 3: Cross multiply
    27,216.01x = 40,812.94 × 8,489.76
  4. Step 4: Simplify right side
    27,216.01x = 346,492,065.49
  5. Step 5: Solve for x
    x = 346,492,065.49/27,216.01
  6. Step 6: Final answer
    x = 12,731.19

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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.