Home / 20,724.30-31,087.17-6,684.30

Finding the Fourth Proportional to 20,724.30, 31,087.17 and 6,684.30

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Solution

The fourth proportional to 20,724.30, 31,087.17 and 6,684.30 is: 10,026.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,724.30 : 31,087.17 = 6,684.30 : x
  2. Step 2: Convert to fraction form
    20,724.30/31,087.17 = 6,684.30/x
  3. Step 3: Cross multiply
    20,724.30x = 31,087.17 × 6,684.30
  4. Step 4: Simplify right side
    20,724.30x = 207,795,970.43
  5. Step 5: Solve for x
    x = 207,795,970.43/20,724.30
  6. Step 6: Final answer
    x = 10,026.68

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.