Home / 28,717.78-43,076.63-8,997.87

Finding the Fourth Proportional to 28,717.78, 43,076.63 and 8,997.87

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Solution

The fourth proportional to 28,717.78, 43,076.63 and 8,997.87 is: 13,496.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,717.78 : 43,076.63 = 8,997.87 : x
  2. Step 2: Convert to fraction form
    28,717.78/43,076.63 = 8,997.87/x
  3. Step 3: Cross multiply
    28,717.78x = 43,076.63 × 8,997.87
  4. Step 4: Simplify right side
    28,717.78x = 387,597,939.27
  5. Step 5: Solve for x
    x = 387,597,939.27/28,717.78
  6. Step 6: Final answer
    x = 13,496.79

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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.