Home / 18,420.52-27,622.66-5,269.90

Finding the Fourth Proportional to 18,420.52, 27,622.66 and 5,269.90

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Solution

The fourth proportional to 18,420.52, 27,622.66 and 5,269.90 is: 7,902.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,420.52 : 27,622.66 = 5,269.90 : x
  2. Step 2: Convert to fraction form
    18,420.52/27,622.66 = 5,269.90/x
  3. Step 3: Cross multiply
    18,420.52x = 27,622.66 × 5,269.90
  4. Step 4: Simplify right side
    18,420.52x = 145,568,655.93
  5. Step 5: Solve for x
    x = 145,568,655.93/18,420.52
  6. Step 6: Final answer
    x = 7,902.53

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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.