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Finding the Fourth Proportional to 17,999.75, 27,000.38 and 5,519.88

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Solution

The fourth proportional to 17,999.75, 27,000.38 and 5,519.88 is: 8,280.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,999.75 : 27,000.38 = 5,519.88 : x
  2. Step 2: Convert to fraction form
    17,999.75/27,000.38 = 5,519.88/x
  3. Step 3: Cross multiply
    17,999.75x = 27,000.38 × 5,519.88
  4. Step 4: Simplify right side
    17,999.75x = 149,038,871.35
  5. Step 5: Solve for x
    x = 149,038,871.35/17,999.75
  6. Step 6: Final answer
    x = 8,280.05

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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.