Home / 27,308.67-40,951.41-11,520.78

Finding the Fourth Proportional to 27,308.67, 40,951.41 and 11,520.78

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Solution

The fourth proportional to 27,308.67, 40,951.41 and 11,520.78 is: 17,276.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,308.67 : 40,951.41 = 11,520.78 : x
  2. Step 2: Convert to fraction form
    27,308.67/40,951.41 = 11,520.78/x
  3. Step 3: Cross multiply
    27,308.67x = 40,951.41 × 11,520.78
  4. Step 4: Simplify right side
    27,308.67x = 471,792,185.30
  5. Step 5: Solve for x
    x = 471,792,185.30/27,308.67
  6. Step 6: Final answer
    x = 17,276.28

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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.