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Finding the Fourth Proportional to 17,993.64, 27,007.74 and 16,861.80

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Solution

The fourth proportional to 17,993.64, 27,007.74 and 16,861.80 is: 25,308.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,993.64 : 27,007.74 = 16,861.80 : x
  2. Step 2: Convert to fraction form
    17,993.64/27,007.74 = 16,861.80/x
  3. Step 3: Cross multiply
    17,993.64x = 27,007.74 × 16,861.80
  4. Step 4: Simplify right side
    17,993.64x = 455,399,110.33
  5. Step 5: Solve for x
    x = 455,399,110.33/17,993.64
  6. Step 6: Final answer
    x = 25,308.89

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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.