Home / 20,179.45-30,272.42-7,698.97

Finding the Fourth Proportional to 20,179.45, 30,272.42 and 7,698.97

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Solution

The fourth proportional to 20,179.45, 30,272.42 and 7,698.97 is: 11,549.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,179.45 : 30,272.42 = 7,698.97 : x
  2. Step 2: Convert to fraction form
    20,179.45/30,272.42 = 7,698.97/x
  3. Step 3: Cross multiply
    20,179.45x = 30,272.42 × 7,698.97
  4. Step 4: Simplify right side
    20,179.45x = 233,066,453.41
  5. Step 5: Solve for x
    x = 233,066,453.41/20,179.45
  6. Step 6: Final answer
    x = 11,549.69

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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.