Home / 18,677.22-28,019.94-5,530.62

Finding the Fourth Proportional to 18,677.22, 28,019.94 and 5,530.62

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Solution

The fourth proportional to 18,677.22, 28,019.94 and 5,530.62 is: 8,297.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,677.22 : 28,019.94 = 5,530.62 : x
  2. Step 2: Convert to fraction form
    18,677.22/28,019.94 = 5,530.62/x
  3. Step 3: Cross multiply
    18,677.22x = 28,019.94 × 5,530.62
  4. Step 4: Simplify right side
    18,677.22x = 154,967,535.66
  5. Step 5: Solve for x
    x = 154,967,535.66/18,677.22
  6. Step 6: Final answer
    x = 8,297.14

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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.