Home / 22,940.48-31,660.26-12,871.64

Finding the Fourth Proportional to 22,940.48, 31,660.26 and 12,871.64

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Solution

The fourth proportional to 22,940.48, 31,660.26 and 12,871.64 is: 17,764.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,940.48 : 31,660.26 = 12,871.64 : x
  2. Step 2: Convert to fraction form
    22,940.48/31,660.26 = 12,871.64/x
  3. Step 3: Cross multiply
    22,940.48x = 31,660.26 × 12,871.64
  4. Step 4: Simplify right side
    22,940.48x = 407,519,469.03
  5. Step 5: Solve for x
    x = 407,519,469.03/22,940.48
  6. Step 6: Final answer
    x = 17,764.21

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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.