Home / 18,690.24-28,021.65-8,824.02

Finding the Fourth Proportional to 18,690.24, 28,021.65 and 8,824.02

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Solution

The fourth proportional to 18,690.24, 28,021.65 and 8,824.02 is: 13,229.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,690.24 : 28,021.65 = 8,824.02 : x
  2. Step 2: Convert to fraction form
    18,690.24/28,021.65 = 8,824.02/x
  3. Step 3: Cross multiply
    18,690.24x = 28,021.65 × 8,824.02
  4. Step 4: Simplify right side
    18,690.24x = 247,263,600.03
  5. Step 5: Solve for x
    x = 247,263,600.03/18,690.24
  6. Step 6: Final answer
    x = 13,229.56

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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.