Home / 17,139.66-25,640.64-15,367.38

Finding the Fourth Proportional to 17,139.66, 25,640.64 and 15,367.38

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Solution

The fourth proportional to 17,139.66, 25,640.64 and 15,367.38 is: 22,989.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,139.66 : 25,640.64 = 15,367.38 : x
  2. Step 2: Convert to fraction form
    17,139.66/25,640.64 = 15,367.38/x
  3. Step 3: Cross multiply
    17,139.66x = 25,640.64 × 15,367.38
  4. Step 4: Simplify right side
    17,139.66x = 394,029,458.32
  5. Step 5: Solve for x
    x = 394,029,458.32/17,139.66
  6. Step 6: Final answer
    x = 22,989.34

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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.