Home / 19,757.22-29,620.42-13,415.38

Finding the Fourth Proportional to 19,757.22, 29,620.42 and 13,415.38

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Solution

The fourth proportional to 19,757.22, 29,620.42 and 13,415.38 is: 20,112.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,757.22 : 29,620.42 = 13,415.38 : x
  2. Step 2: Convert to fraction form
    19,757.22/29,620.42 = 13,415.38/x
  3. Step 3: Cross multiply
    19,757.22x = 29,620.42 × 13,415.38
  4. Step 4: Simplify right side
    19,757.22x = 397,369,041.96
  5. Step 5: Solve for x
    x = 397,369,041.96/19,757.22
  6. Step 6: Final answer
    x = 20,112.60

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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.