Home / 21,704.76-29,957.04-20,227.32

Finding the Fourth Proportional to 21,704.76, 29,957.04 and 20,227.32

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Solution

The fourth proportional to 21,704.76, 29,957.04 and 20,227.32 is: 27,917.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,704.76 : 29,957.04 = 20,227.32 : x
  2. Step 2: Convert to fraction form
    21,704.76/29,957.04 = 20,227.32/x
  3. Step 3: Cross multiply
    21,704.76x = 29,957.04 × 20,227.32
  4. Step 4: Simplify right side
    21,704.76x = 605,950,634.33
  5. Step 5: Solve for x
    x = 605,950,634.33/21,704.76
  6. Step 6: Final answer
    x = 27,917.87

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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.