Home / 20,696.70-31,049.87-5,905.82

Finding the Fourth Proportional to 20,696.70, 31,049.87 and 5,905.82

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Solution

The fourth proportional to 20,696.70, 31,049.87 and 5,905.82 is: 8,860.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,696.70 : 31,049.87 = 5,905.82 : x
  2. Step 2: Convert to fraction form
    20,696.70/31,049.87 = 5,905.82/x
  3. Step 3: Cross multiply
    20,696.70x = 31,049.87 × 5,905.82
  4. Step 4: Simplify right side
    20,696.70x = 183,374,943.24
  5. Step 5: Solve for x
    x = 183,374,943.24/20,696.70
  6. Step 6: Final answer
    x = 8,860.11

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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.