Home / 20,163.17-30,250.90-10,309.37

Finding the Fourth Proportional to 20,163.17, 30,250.90 and 10,309.37

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Solution

The fourth proportional to 20,163.17, 30,250.90 and 10,309.37 is: 15,467.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,163.17 : 30,250.90 = 10,309.37 : x
  2. Step 2: Convert to fraction form
    20,163.17/30,250.90 = 10,309.37/x
  3. Step 3: Cross multiply
    20,163.17x = 30,250.90 × 10,309.37
  4. Step 4: Simplify right side
    20,163.17x = 311,867,569.68
  5. Step 5: Solve for x
    x = 311,867,569.68/20,163.17
  6. Step 6: Final answer
    x = 15,467.19

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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.