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Finding the Fourth Proportional to 27,183.01, 40,721.40 and 18,729.58

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Solution

The fourth proportional to 27,183.01, 40,721.40 and 18,729.58 is: 28,057.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,183.01 : 40,721.40 = 18,729.58 : x
  2. Step 2: Convert to fraction form
    27,183.01/40,721.40 = 18,729.58/x
  3. Step 3: Cross multiply
    27,183.01x = 40,721.40 × 18,729.58
  4. Step 4: Simplify right side
    27,183.01x = 762,694,515.41
  5. Step 5: Solve for x
    x = 762,694,515.41/27,183.01
  6. Step 6: Final answer
    x = 28,057.77

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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.