Home / 20,122.12-30,183.06-10,946.44

Finding the Fourth Proportional to 20,122.12, 30,183.06 and 10,946.44

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Solution

The fourth proportional to 20,122.12, 30,183.06 and 10,946.44 is: 16,419.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,122.12 : 30,183.06 = 10,946.44 : x
  2. Step 2: Convert to fraction form
    20,122.12/30,183.06 = 10,946.44/x
  3. Step 3: Cross multiply
    20,122.12x = 30,183.06 × 10,946.44
  4. Step 4: Simplify right side
    20,122.12x = 330,397,055.31
  5. Step 5: Solve for x
    x = 330,397,055.31/20,122.12
  6. Step 6: Final answer
    x = 16,419.59

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1.5x scale

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.