Home / 13,582.64-20,375.18-3,721.98

Finding the Fourth Proportional to 13,582.64, 20,375.18 and 3,721.98

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Solution

The fourth proportional to 13,582.64, 20,375.18 and 3,721.98 is: 5,583.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,582.64 : 20,375.18 = 3,721.98 : x
  2. Step 2: Convert to fraction form
    13,582.64/20,375.18 = 3,721.98/x
  3. Step 3: Cross multiply
    13,582.64x = 20,375.18 × 3,721.98
  4. Step 4: Simplify right side
    13,582.64x = 75,836,012.46
  5. Step 5: Solve for x
    x = 75,836,012.46/13,582.64
  6. Step 6: Final answer
    x = 5,583.30

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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.