Home / 20,675.96-31,016-6,632.48

Finding the Fourth Proportional to 20,675.96, 31,016 and 6,632.48

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Solution

The fourth proportional to 20,675.96, 31,016 and 6,632.48 is: 9,949.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,675.96 : 31,016 = 6,632.48 : x
  2. Step 2: Convert to fraction form
    20,675.96/31,016 = 6,632.48/x
  3. Step 3: Cross multiply
    20,675.96x = 31,016 × 6,632.48
  4. Step 4: Simplify right side
    20,675.96x = 205,712,999.68
  5. Step 5: Solve for x
    x = 205,712,999.68/20,675.96
  6. Step 6: Final answer
    x = 9,949.38

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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.