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Finding the Fourth Proportional to 18,650.28, 27,975.42 and 17,840.41

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Solution

The fourth proportional to 18,650.28, 27,975.42 and 17,840.41 is: 26,760.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,650.28 : 27,975.42 = 17,840.41 : x
  2. Step 2: Convert to fraction form
    18,650.28/27,975.42 = 17,840.41/x
  3. Step 3: Cross multiply
    18,650.28x = 27,975.42 × 17,840.41
  4. Step 4: Simplify right side
    18,650.28x = 499,092,892.78
  5. Step 5: Solve for x
    x = 499,092,892.78/18,650.28
  6. Step 6: Final answer
    x = 26,760.61

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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.