Home / 20,173.68-30,234.24-10,304.64

Finding the Fourth Proportional to 20,173.68, 30,234.24 and 10,304.64

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Solution

The fourth proportional to 20,173.68, 30,234.24 and 10,304.64 is: 15,443.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,173.68 : 30,234.24 = 10,304.64 : x
  2. Step 2: Convert to fraction form
    20,173.68/30,234.24 = 10,304.64/x
  3. Step 3: Cross multiply
    20,173.68x = 30,234.24 × 10,304.64
  4. Step 4: Simplify right side
    20,173.68x = 311,552,958.87
  5. Step 5: Solve for x
    x = 311,552,958.87/20,173.68
  6. Step 6: Final answer
    x = 15,443.54

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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.