Home / 35,904-49,553.28-20,997.12

Finding the Fourth Proportional to 35,904, 49,553.28 and 20,997.12

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Solution

The fourth proportional to 35,904, 49,553.28 and 20,997.12 is: 28,979.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,904 : 49,553.28 = 20,997.12 : x
  2. Step 2: Convert to fraction form
    35,904/49,553.28 = 20,997.12/x
  3. Step 3: Cross multiply
    35,904x = 49,553.28 × 20,997.12
  4. Step 4: Simplify right side
    35,904x = 1,040,476,166.55
  5. Step 5: Solve for x
    x = 1,040,476,166.55/35,904
  6. Step 6: Final answer
    x = 28,979.39

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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.