Home / 20,584.80-30,876.96-5,002.56

Finding the Fourth Proportional to 20,584.80, 30,876.96 and 5,002.56

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Solution

The fourth proportional to 20,584.80, 30,876.96 and 5,002.56 is: 7,503.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,584.80 : 30,876.96 = 5,002.56 : x
  2. Step 2: Convert to fraction form
    20,584.80/30,876.96 = 5,002.56/x
  3. Step 3: Cross multiply
    20,584.80x = 30,876.96 × 5,002.56
  4. Step 4: Simplify right side
    20,584.80x = 154,463,845.02
  5. Step 5: Solve for x
    x = 154,463,845.02/20,584.80
  6. Step 6: Final answer
    x = 7,503.78

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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.