Home / 20,418.44-30,635.94-13,840.88

Finding the Fourth Proportional to 20,418.44, 30,635.94 and 13,840.88

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Solution

The fourth proportional to 20,418.44, 30,635.94 and 13,840.88 is: 20,766.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,418.44 : 30,635.94 = 13,840.88 : x
  2. Step 2: Convert to fraction form
    20,418.44/30,635.94 = 13,840.88/x
  3. Step 3: Cross multiply
    20,418.44x = 30,635.94 × 13,840.88
  4. Step 4: Simplify right side
    20,418.44x = 424,028,369.23
  5. Step 5: Solve for x
    x = 424,028,369.23/20,418.44
  6. Step 6: Final answer
    x = 20,766.93

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1.5x scale

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.