Home / 18,819.03-28,242.09-15,165.39

Finding the Fourth Proportional to 18,819.03, 28,242.09 and 15,165.39

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Solution

The fourth proportional to 18,819.03, 28,242.09 and 15,165.39 is: 22,759.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,819.03 : 28,242.09 = 15,165.39 : x
  2. Step 2: Convert to fraction form
    18,819.03/28,242.09 = 15,165.39/x
  3. Step 3: Cross multiply
    18,819.03x = 28,242.09 × 15,165.39
  4. Step 4: Simplify right side
    18,819.03x = 428,302,309.27
  5. Step 5: Solve for x
    x = 428,302,309.27/18,819.03
  6. Step 6: Final answer
    x = 22,759.00

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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.