Home / 18,680.00-28,022.69-5,530.64

Finding the Fourth Proportional to 18,680.00, 28,022.69 and 5,530.64

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Solution

The fourth proportional to 18,680.00, 28,022.69 and 5,530.64 is: 8,296.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,680.00 : 28,022.69 = 5,530.64 : x
  2. Step 2: Convert to fraction form
    18,680.00/28,022.69 = 5,530.64/x
  3. Step 3: Cross multiply
    18,680.00x = 28,022.69 × 5,530.64
  4. Step 4: Simplify right side
    18,680.00x = 154,983,283.93
  5. Step 5: Solve for x
    x = 154,983,283.93/18,680.00
  6. Step 6: Final answer
    x = 8,296.75

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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.