Home / 20,723.67-31,081.14-6,685.02

Finding the Fourth Proportional to 20,723.67, 31,081.14 and 6,685.02

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Solution

The fourth proportional to 20,723.67, 31,081.14 and 6,685.02 is: 10,026.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,723.67 : 31,081.14 = 6,685.02 : x
  2. Step 2: Convert to fraction form
    20,723.67/31,081.14 = 6,685.02/x
  3. Step 3: Cross multiply
    20,723.67x = 31,081.14 × 6,685.02
  4. Step 4: Simplify right side
    20,723.67x = 207,778,042.52
  5. Step 5: Solve for x
    x = 207,778,042.52/20,723.67
  6. Step 6: Final answer
    x = 10,026.12

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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.