Home / 20,318.42-30,481.42-9,225.88

Finding the Fourth Proportional to 20,318.42, 30,481.42 and 9,225.88

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Solution

The fourth proportional to 20,318.42, 30,481.42 and 9,225.88 is: 13,840.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,318.42 : 30,481.42 = 9,225.88 : x
  2. Step 2: Convert to fraction form
    20,318.42/30,481.42 = 9,225.88/x
  3. Step 3: Cross multiply
    20,318.42x = 30,481.42 × 9,225.88
  4. Step 4: Simplify right side
    20,318.42x = 281,217,923.15
  5. Step 5: Solve for x
    x = 281,217,923.15/20,318.42
  6. Step 6: Final answer
    x = 13,840.54

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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.