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Finding the Fourth Proportional to 27,086.76, 40,629.42 and 12,284.88

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Solution

The fourth proportional to 27,086.76, 40,629.42 and 12,284.88 is: 18,426.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,086.76 : 40,629.42 = 12,284.88 : x
  2. Step 2: Convert to fraction form
    27,086.76/40,629.42 = 12,284.88/x
  3. Step 3: Cross multiply
    27,086.76x = 40,629.42 × 12,284.88
  4. Step 4: Simplify right side
    27,086.76x = 499,127,549.17
  5. Step 5: Solve for x
    x = 499,127,549.17/27,086.76
  6. Step 6: Final answer
    x = 18,426.99

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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.