Home / 20,231.46-30,347.19-8,544.78

Finding the Fourth Proportional to 20,231.46, 30,347.19 and 8,544.78

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Solution

The fourth proportional to 20,231.46, 30,347.19 and 8,544.78 is: 12,817.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,231.46 : 30,347.19 = 8,544.78 : x
  2. Step 2: Convert to fraction form
    20,231.46/30,347.19 = 8,544.78/x
  3. Step 3: Cross multiply
    20,231.46x = 30,347.19 × 8,544.78
  4. Step 4: Simplify right side
    20,231.46x = 259,310,062.17
  5. Step 5: Solve for x
    x = 259,310,062.17/20,231.46
  6. Step 6: Final answer
    x = 12,817.17

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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.