Home / 20,356.88-28,092.56-11,864.04

Finding the Fourth Proportional to 20,356.88, 28,092.56 and 11,864.04

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Solution

The fourth proportional to 20,356.88, 28,092.56 and 11,864.04 is: 16,372.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,356.88 : 28,092.56 = 11,864.04 : x
  2. Step 2: Convert to fraction form
    20,356.88/28,092.56 = 11,864.04/x
  3. Step 3: Cross multiply
    20,356.88x = 28,092.56 × 11,864.04
  4. Step 4: Simplify right side
    20,356.88x = 333,291,255.54
  5. Step 5: Solve for x
    x = 333,291,255.54/20,356.88
  6. Step 6: Final answer
    x = 16,372.41

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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.