Home / 20,666.14-30,998.92-5,083.90

Finding the Fourth Proportional to 20,666.14, 30,998.92 and 5,083.90

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Solution

The fourth proportional to 20,666.14, 30,998.92 and 5,083.90 is: 7,625.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,666.14 : 30,998.92 = 5,083.90 : x
  2. Step 2: Convert to fraction form
    20,666.14/30,998.92 = 5,083.90/x
  3. Step 3: Cross multiply
    20,666.14x = 30,998.92 × 5,083.90
  4. Step 4: Simplify right side
    20,666.14x = 157,595,409.39
  5. Step 5: Solve for x
    x = 157,595,409.39/20,666.14
  6. Step 6: Final answer
    x = 7,625.78

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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.