Home / 20,579.26-30,868.89-4,996.78

Finding the Fourth Proportional to 20,579.26, 30,868.89 and 4,996.78

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Solution

The fourth proportional to 20,579.26, 30,868.89 and 4,996.78 is: 7,495.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,579.26 : 30,868.89 = 4,996.78 : x
  2. Step 2: Convert to fraction form
    20,579.26/30,868.89 = 4,996.78/x
  3. Step 3: Cross multiply
    20,579.26x = 30,868.89 × 4,996.78
  4. Step 4: Simplify right side
    20,579.26x = 154,245,052.17
  5. Step 5: Solve for x
    x = 154,245,052.17/20,579.26
  6. Step 6: Final answer
    x = 7,495.17

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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.