Home / 19,913.85-29,832.50-11,122.11

Finding the Fourth Proportional to 19,913.85, 29,832.50 and 11,122.11

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Solution

The fourth proportional to 19,913.85, 29,832.50 and 11,122.11 is: 16,661.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,913.85 : 29,832.50 = 11,122.11 : x
  2. Step 2: Convert to fraction form
    19,913.85/29,832.50 = 11,122.11/x
  3. Step 3: Cross multiply
    19,913.85x = 29,832.50 × 11,122.11
  4. Step 4: Simplify right side
    19,913.85x = 331,800,374.38
  5. Step 5: Solve for x
    x = 331,800,374.38/19,913.85
  6. Step 6: Final answer
    x = 16,661.79

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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.