Home / 20,203.14-30,309.50-10,183.26

Finding the Fourth Proportional to 20,203.14, 30,309.50 and 10,183.26

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Solution

The fourth proportional to 20,203.14, 30,309.50 and 10,183.26 is: 15,277.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,203.14 : 30,309.50 = 10,183.26 : x
  2. Step 2: Convert to fraction form
    20,203.14/30,309.50 = 10,183.26/x
  3. Step 3: Cross multiply
    20,203.14x = 30,309.50 × 10,183.26
  4. Step 4: Simplify right side
    20,203.14x = 308,649,518.97
  5. Step 5: Solve for x
    x = 308,649,518.97/20,203.14
  6. Step 6: Final answer
    x = 15,277.30

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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.