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Finding the Fourth Proportional to 18,057.89, 24,920.57 and 10,100.09

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Solution

The fourth proportional to 18,057.89, 24,920.57 and 10,100.09 is: 13,938.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,057.89 : 24,920.57 = 10,100.09 : x
  2. Step 2: Convert to fraction form
    18,057.89/24,920.57 = 10,100.09/x
  3. Step 3: Cross multiply
    18,057.89x = 24,920.57 × 10,100.09
  4. Step 4: Simplify right side
    18,057.89x = 251,700,087.40
  5. Step 5: Solve for x
    x = 251,700,087.40/18,057.89
  6. Step 6: Final answer
    x = 13,938.51

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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.