Home / 20,678.75-30,993.42-7,523.96

Finding the Fourth Proportional to 20,678.75, 30,993.42 and 7,523.96

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Solution

The fourth proportional to 20,678.75, 30,993.42 and 7,523.96 is: 11,276.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,678.75 : 30,993.42 = 7,523.96 : x
  2. Step 2: Convert to fraction form
    20,678.75/30,993.42 = 7,523.96/x
  3. Step 3: Cross multiply
    20,678.75x = 30,993.42 × 7,523.96
  4. Step 4: Simplify right side
    20,678.75x = 233,193,252.34
  5. Step 5: Solve for x
    x = 233,193,252.34/20,678.75
  6. Step 6: Final answer
    x = 11,276.95

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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.