Home / 33,137.66-45,731.57-18,990.54

Finding the Fourth Proportional to 33,137.66, 45,731.57 and 18,990.54

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Solution

The fourth proportional to 33,137.66, 45,731.57 and 18,990.54 is: 26,207.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,137.66 : 45,731.57 = 18,990.54 : x
  2. Step 2: Convert to fraction form
    33,137.66/45,731.57 = 18,990.54/x
  3. Step 3: Cross multiply
    33,137.66x = 45,731.57 × 18,990.54
  4. Step 4: Simplify right side
    33,137.66x = 868,467,114.40
  5. Step 5: Solve for x
    x = 868,467,114.40/33,137.66
  6. Step 6: Final answer
    x = 26,207.86

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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.