Home / 20,863.26-31,294.89-7,021.98

Finding the Fourth Proportional to 20,863.26, 31,294.89 and 7,021.98

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Solution

The fourth proportional to 20,863.26, 31,294.89 and 7,021.98 is: 10,532.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,863.26 : 31,294.89 = 7,021.98 : x
  2. Step 2: Convert to fraction form
    20,863.26/31,294.89 = 7,021.98/x
  3. Step 3: Cross multiply
    20,863.26x = 31,294.89 × 7,021.98
  4. Step 4: Simplify right side
    20,863.26x = 219,752,091.68
  5. Step 5: Solve for x
    x = 219,752,091.68/20,863.26
  6. Step 6: Final answer
    x = 10,532.97

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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.