Home / 28,160.48-38,849.28-16,976

Finding the Fourth Proportional to 28,160.48, 38,849.28 and 16,976

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Solution

The fourth proportional to 28,160.48, 38,849.28 and 16,976 is: 23,419.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,160.48 : 38,849.28 = 16,976 : x
  2. Step 2: Convert to fraction form
    28,160.48/38,849.28 = 16,976/x
  3. Step 3: Cross multiply
    28,160.48x = 38,849.28 × 16,976
  4. Step 4: Simplify right side
    28,160.48x = 659,505,377.28
  5. Step 5: Solve for x
    x = 659,505,377.28/28,160.48
  6. Step 6: Final answer
    x = 23,419.54

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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.