Home / 22,791.30-34,207.20-13,419.60

Finding the Fourth Proportional to 22,791.30, 34,207.20 and 13,419.60

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Solution

The fourth proportional to 22,791.30, 34,207.20 and 13,419.60 is: 20,141.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,791.30 : 34,207.20 = 13,419.60 : x
  2. Step 2: Convert to fraction form
    22,791.30/34,207.20 = 13,419.60/x
  3. Step 3: Cross multiply
    22,791.30x = 34,207.20 × 13,419.60
  4. Step 4: Simplify right side
    22,791.30x = 459,046,941.12
  5. Step 5: Solve for x
    x = 459,046,941.12/22,791.30
  6. Step 6: Final answer
    x = 20,141.32

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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.