Home / 19,955.28-29,930.49-5,162.97

Finding the Fourth Proportional to 19,955.28, 29,930.49 and 5,162.97

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Solution

The fourth proportional to 19,955.28, 29,930.49 and 5,162.97 is: 7,743.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,955.28 : 29,930.49 = 5,162.97 : x
  2. Step 2: Convert to fraction form
    19,955.28/29,930.49 = 5,162.97/x
  3. Step 3: Cross multiply
    19,955.28x = 29,930.49 × 5,162.97
  4. Step 4: Simplify right side
    19,955.28x = 154,530,221.96
  5. Step 5: Solve for x
    x = 154,530,221.96/19,955.28
  6. Step 6: Final answer
    x = 7,743.83

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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.