Home / 20,163.18-30,218.49-10,294.14

Finding the Fourth Proportional to 20,163.18, 30,218.49 and 10,294.14

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Solution

The fourth proportional to 20,163.18, 30,218.49 and 10,294.14 is: 15,427.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,163.18 : 30,218.49 = 10,294.14 : x
  2. Step 2: Convert to fraction form
    20,163.18/30,218.49 = 10,294.14/x
  3. Step 3: Cross multiply
    20,163.18x = 30,218.49 × 10,294.14
  4. Step 4: Simplify right side
    20,163.18x = 311,073,366.65
  5. Step 5: Solve for x
    x = 311,073,366.65/20,163.18
  6. Step 6: Final answer
    x = 15,427.79

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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.