Home / 19,914.85-29,834-11,123.11

Finding the Fourth Proportional to 19,914.85, 29,834 and 11,123.11

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Solution

The fourth proportional to 19,914.85, 29,834 and 11,123.11 is: 16,663.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,914.85 : 29,834 = 11,123.11 : x
  2. Step 2: Convert to fraction form
    19,914.85/29,834 = 11,123.11/x
  3. Step 3: Cross multiply
    19,914.85x = 29,834 × 11,123.11
  4. Step 4: Simplify right side
    19,914.85x = 331,846,863.74
  5. Step 5: Solve for x
    x = 331,846,863.74/19,914.85
  6. Step 6: Final answer
    x = 16,663.29

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.