Home / 20,173.25-30,195.18-10,789.81

Finding the Fourth Proportional to 20,173.25, 30,195.18 and 10,789.81

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Solution

The fourth proportional to 20,173.25, 30,195.18 and 10,789.81 is: 16,150.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,173.25 : 30,195.18 = 10,789.81 : x
  2. Step 2: Convert to fraction form
    20,173.25/30,195.18 = 10,789.81/x
  3. Step 3: Cross multiply
    20,173.25x = 30,195.18 × 10,789.81
  4. Step 4: Simplify right side
    20,173.25x = 325,800,179.63
  5. Step 5: Solve for x
    x = 325,800,179.63/20,173.25
  6. Step 6: Final answer
    x = 16,150.11

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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.