Home / 20,163.42-30,247.56-8,475.12

Finding the Fourth Proportional to 20,163.42, 30,247.56 and 8,475.12

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Solution

The fourth proportional to 20,163.42, 30,247.56 and 8,475.12 is: 12,713.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,163.42 : 30,247.56 = 8,475.12 : x
  2. Step 2: Convert to fraction form
    20,163.42/30,247.56 = 8,475.12/x
  3. Step 3: Cross multiply
    20,163.42x = 30,247.56 × 8,475.12
  4. Step 4: Simplify right side
    20,163.42x = 256,351,700.71
  5. Step 5: Solve for x
    x = 256,351,700.71/20,163.42
  6. Step 6: Final answer
    x = 12,713.70

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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.