Home / 20,168.14-30,231.96-7,684.96

Finding the Fourth Proportional to 20,168.14, 30,231.96 and 7,684.96

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Solution

The fourth proportional to 20,168.14, 30,231.96 and 7,684.96 is: 11,519.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,168.14 : 30,231.96 = 7,684.96 : x
  2. Step 2: Convert to fraction form
    20,168.14/30,231.96 = 7,684.96/x
  3. Step 3: Cross multiply
    20,168.14x = 30,231.96 × 7,684.96
  4. Step 4: Simplify right side
    20,168.14x = 232,331,403.32
  5. Step 5: Solve for x
    x = 232,331,403.32/20,168.14
  6. Step 6: Final answer
    x = 11,519.72

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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.