Home / 21,246.62-29,197.26-20,270.97

Finding the Fourth Proportional to 21,246.62, 29,197.26 and 20,270.97

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Solution

The fourth proportional to 21,246.62, 29,197.26 and 20,270.97 is: 27,856.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,246.62 : 29,197.26 = 20,270.97 : x
  2. Step 2: Convert to fraction form
    21,246.62/29,197.26 = 20,270.97/x
  3. Step 3: Cross multiply
    21,246.62x = 29,197.26 × 20,270.97
  4. Step 4: Simplify right side
    21,246.62x = 591,856,781.54
  5. Step 5: Solve for x
    x = 591,856,781.54/21,246.62
  6. Step 6: Final answer
    x = 27,856.52

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.