Home / 25,102.31-34,640.87-13,617.05

Finding the Fourth Proportional to 25,102.31, 34,640.87 and 13,617.05

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Solution

The fourth proportional to 25,102.31, 34,640.87 and 13,617.05 is: 18,791.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,102.31 : 34,640.87 = 13,617.05 : x
  2. Step 2: Convert to fraction form
    25,102.31/34,640.87 = 13,617.05/x
  3. Step 3: Cross multiply
    25,102.31x = 34,640.87 × 13,617.05
  4. Step 4: Simplify right side
    25,102.31x = 471,706,217.54
  5. Step 5: Solve for x
    x = 471,706,217.54/25,102.31
  6. Step 6: Final answer
    x = 18,791.35

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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.