Home / 20,161.68-30,216.24-10,292.64

Finding the Fourth Proportional to 20,161.68, 30,216.24 and 10,292.64

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Solution

The fourth proportional to 20,161.68, 30,216.24 and 10,292.64 is: 15,425.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,161.68 : 30,216.24 = 10,292.64 : x
  2. Step 2: Convert to fraction form
    20,161.68/30,216.24 = 10,292.64/x
  3. Step 3: Cross multiply
    20,161.68x = 30,216.24 × 10,292.64
  4. Step 4: Simplify right side
    20,161.68x = 311,004,880.47
  5. Step 5: Solve for x
    x = 311,004,880.47/20,161.68
  6. Step 6: Final answer
    x = 15,425.54

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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.