Home / 18,622.10-27,933.15-5,474.49

Finding the Fourth Proportional to 18,622.10, 27,933.15 and 5,474.49

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Solution

The fourth proportional to 18,622.10, 27,933.15 and 5,474.49 is: 8,211.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,622.10 : 27,933.15 = 5,474.49 : x
  2. Step 2: Convert to fraction form
    18,622.10/27,933.15 = 5,474.49/x
  3. Step 3: Cross multiply
    18,622.10x = 27,933.15 × 5,474.49
  4. Step 4: Simplify right side
    18,622.10x = 152,919,666.12
  5. Step 5: Solve for x
    x = 152,919,666.12/18,622.10
  6. Step 6: Final answer
    x = 8,211.73

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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.