Home / 20,476.46-30,716.15-7,992.34

Finding the Fourth Proportional to 20,476.46, 30,716.15 and 7,992.34

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Solution

The fourth proportional to 20,476.46, 30,716.15 and 7,992.34 is: 11,989.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,476.46 : 30,716.15 = 7,992.34 : x
  2. Step 2: Convert to fraction form
    20,476.46/30,716.15 = 7,992.34/x
  3. Step 3: Cross multiply
    20,476.46x = 30,716.15 × 7,992.34
  4. Step 4: Simplify right side
    20,476.46x = 245,493,797.54
  5. Step 5: Solve for x
    x = 245,493,797.54/20,476.46
  6. Step 6: Final answer
    x = 11,989.07

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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.