Home / 22,879.43-31,557.33-20,997.09

Finding the Fourth Proportional to 22,879.43, 31,557.33 and 20,997.09

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Solution

The fourth proportional to 22,879.43, 31,557.33 and 20,997.09 is: 28,961.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,879.43 : 31,557.33 = 20,997.09 : x
  2. Step 2: Convert to fraction form
    22,879.43/31,557.33 = 20,997.09/x
  3. Step 3: Cross multiply
    22,879.43x = 31,557.33 × 20,997.09
  4. Step 4: Simplify right side
    22,879.43x = 662,611,940.38
  5. Step 5: Solve for x
    x = 662,611,940.38/22,879.43
  6. Step 6: Final answer
    x = 28,961.04

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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.