Home / 22,553.80-31,123.78-12,481.65

Finding the Fourth Proportional to 22,553.80, 31,123.78 and 12,481.65

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Solution

The fourth proportional to 22,553.80, 31,123.78 and 12,481.65 is: 17,224.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,553.80 : 31,123.78 = 12,481.65 : x
  2. Step 2: Convert to fraction form
    22,553.80/31,123.78 = 12,481.65/x
  3. Step 3: Cross multiply
    22,553.80x = 31,123.78 × 12,481.65
  4. Step 4: Simplify right side
    22,553.80x = 388,476,128.64
  5. Step 5: Solve for x
    x = 388,476,128.64/22,553.80
  6. Step 6: Final answer
    x = 17,224.42

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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.