Home / 20,120.50-27,766.29-13,046.97

Finding the Fourth Proportional to 20,120.50, 27,766.29 and 13,046.97

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Solution

The fourth proportional to 20,120.50, 27,766.29 and 13,046.97 is: 18,004.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,120.50 : 27,766.29 = 13,046.97 : x
  2. Step 2: Convert to fraction form
    20,120.50/27,766.29 = 13,046.97/x
  3. Step 3: Cross multiply
    20,120.50x = 27,766.29 × 13,046.97
  4. Step 4: Simplify right side
    20,120.50x = 362,265,952.64
  5. Step 5: Solve for x
    x = 362,265,952.64/20,120.50
  6. Step 6: Final answer
    x = 18,004.82

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.