Home / 20,246.24-30,369.39-10,380.12

Finding the Fourth Proportional to 20,246.24, 30,369.39 and 10,380.12

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Solution

The fourth proportional to 20,246.24, 30,369.39 and 10,380.12 is: 15,570.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,246.24 : 30,369.39 = 10,380.12 : x
  2. Step 2: Convert to fraction form
    20,246.24/30,369.39 = 10,380.12/x
  3. Step 3: Cross multiply
    20,246.24x = 30,369.39 × 10,380.12
  4. Step 4: Simplify right side
    20,246.24x = 315,237,912.53
  5. Step 5: Solve for x
    x = 315,237,912.53/20,246.24
  6. Step 6: Final answer
    x = 15,570.20

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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.