Home / 19,120.49-28,680.52-13,474.97

Finding the Fourth Proportional to 19,120.49, 28,680.52 and 13,474.97

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Solution

The fourth proportional to 19,120.49, 28,680.52 and 13,474.97 is: 20,212.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,120.49 : 28,680.52 = 13,474.97 : x
  2. Step 2: Convert to fraction form
    19,120.49/28,680.52 = 13,474.97/x
  3. Step 3: Cross multiply
    19,120.49x = 28,680.52 × 13,474.97
  4. Step 4: Simplify right side
    19,120.49x = 386,469,146.58
  5. Step 5: Solve for x
    x = 386,469,146.58/19,120.49
  6. Step 6: Final answer
    x = 20,212.30

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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.