Home / 22,751.46-31,396.89-12,680.34

Finding the Fourth Proportional to 22,751.46, 31,396.89 and 12,680.34

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Solution

The fourth proportional to 22,751.46, 31,396.89 and 12,680.34 is: 17,498.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,751.46 : 31,396.89 = 12,680.34 : x
  2. Step 2: Convert to fraction form
    22,751.46/31,396.89 = 12,680.34/x
  3. Step 3: Cross multiply
    22,751.46x = 31,396.89 × 12,680.34
  4. Step 4: Simplify right side
    22,751.46x = 398,123,240.14
  5. Step 5: Solve for x
    x = 398,123,240.14/22,751.46
  6. Step 6: Final answer
    x = 17,498.80

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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.