Home / 20,670.68-31,010.49-6,627.44

Finding the Fourth Proportional to 20,670.68, 31,010.49 and 6,627.44

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Solution

The fourth proportional to 20,670.68, 31,010.49 and 6,627.44 is: 9,942.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,670.68 : 31,010.49 = 6,627.44 : x
  2. Step 2: Convert to fraction form
    20,670.68/31,010.49 = 6,627.44/x
  3. Step 3: Cross multiply
    20,670.68x = 31,010.49 × 6,627.44
  4. Step 4: Simplify right side
    20,670.68x = 205,520,006.79
  5. Step 5: Solve for x
    x = 205,520,006.79/20,670.68
  6. Step 6: Final answer
    x = 9,942.59

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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.