Home / 28,997.11-40,035.50-18,111.83

Finding the Fourth Proportional to 28,997.11, 40,035.50 and 18,111.83

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Solution

The fourth proportional to 28,997.11, 40,035.50 and 18,111.83 is: 25,006.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,997.11 : 40,035.50 = 18,111.83 : x
  2. Step 2: Convert to fraction form
    28,997.11/40,035.50 = 18,111.83/x
  3. Step 3: Cross multiply
    28,997.11x = 40,035.50 × 18,111.83
  4. Step 4: Simplify right side
    28,997.11x = 725,116,169.97
  5. Step 5: Solve for x
    x = 725,116,169.97/28,997.11
  6. Step 6: Final answer
    x = 25,006.50

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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.