Home / 17,122.15-25,687.38-5,435.47

Finding the Fourth Proportional to 17,122.15, 25,687.38 and 5,435.47

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Solution

The fourth proportional to 17,122.15, 25,687.38 and 5,435.47 is: 8,154.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,122.15 : 25,687.38 = 5,435.47 : x
  2. Step 2: Convert to fraction form
    17,122.15/25,687.38 = 5,435.47/x
  3. Step 3: Cross multiply
    17,122.15x = 25,687.38 × 5,435.47
  4. Step 4: Simplify right side
    17,122.15x = 139,622,983.37
  5. Step 5: Solve for x
    x = 139,622,983.37/17,122.15
  6. Step 6: Final answer
    x = 8,154.52

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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.