Home / 13,582.89-20,375.55-3,722.22

Finding the Fourth Proportional to 13,582.89, 20,375.55 and 3,722.22

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Solution

The fourth proportional to 13,582.89, 20,375.55 and 3,722.22 is: 5,583.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,582.89 : 20,375.55 = 3,722.22 : x
  2. Step 2: Convert to fraction form
    13,582.89/20,375.55 = 3,722.22/x
  3. Step 3: Cross multiply
    13,582.89x = 20,375.55 × 3,722.22
  4. Step 4: Simplify right side
    13,582.89x = 75,842,279.72
  5. Step 5: Solve for x
    x = 75,842,279.72/13,582.89
  6. Step 6: Final answer
    x = 5,583.66

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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.