Home / 28,997.25-40,016.21-16,424.43

Finding the Fourth Proportional to 28,997.25, 40,016.21 and 16,424.43

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Solution

The fourth proportional to 28,997.25, 40,016.21 and 16,424.43 is: 22,665.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,997.25 : 40,016.21 = 16,424.43 : x
  2. Step 2: Convert to fraction form
    28,997.25/40,016.21 = 16,424.43/x
  3. Step 3: Cross multiply
    28,997.25x = 40,016.21 × 16,424.43
  4. Step 4: Simplify right side
    28,997.25x = 657,243,357.89
  5. Step 5: Solve for x
    x = 657,243,357.89/28,997.25
  6. Step 6: Final answer
    x = 22,665.71

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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.