Home / 20,183.28-30,233.64-9,786.48

Finding the Fourth Proportional to 20,183.28, 30,233.64 and 9,786.48

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Solution

The fourth proportional to 20,183.28, 30,233.64 and 9,786.48 is: 14,659.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,183.28 : 30,233.64 = 9,786.48 : x
  2. Step 2: Convert to fraction form
    20,183.28/30,233.64 = 9,786.48/x
  3. Step 3: Cross multiply
    20,183.28x = 30,233.64 × 9,786.48
  4. Step 4: Simplify right side
    20,183.28x = 295,880,913.19
  5. Step 5: Solve for x
    x = 295,880,913.19/20,183.28
  6. Step 6: Final answer
    x = 14,659.70

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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.