Home / 20,846.44-28,772.55-13,291.03

Finding the Fourth Proportional to 20,846.44, 28,772.55 and 13,291.03

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Solution

The fourth proportional to 20,846.44, 28,772.55 and 13,291.03 is: 18,344.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,846.44 : 28,772.55 = 13,291.03 : x
  2. Step 2: Convert to fraction form
    20,846.44/28,772.55 = 13,291.03/x
  3. Step 3: Cross multiply
    20,846.44x = 28,772.55 × 13,291.03
  4. Step 4: Simplify right side
    20,846.44x = 382,416,753.30
  5. Step 5: Solve for x
    x = 382,416,753.30/20,846.44
  6. Step 6: Final answer
    x = 18,344.47

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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.