Home / 20,822.76-31,227.60-6,968.52

Finding the Fourth Proportional to 20,822.76, 31,227.60 and 6,968.52

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Solution

The fourth proportional to 20,822.76, 31,227.60 and 6,968.52 is: 10,450.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,822.76 : 31,227.60 = 6,968.52 : x
  2. Step 2: Convert to fraction form
    20,822.76/31,227.60 = 6,968.52/x
  3. Step 3: Cross multiply
    20,822.76x = 31,227.60 × 6,968.52
  4. Step 4: Simplify right side
    20,822.76x = 217,610,155.15
  5. Step 5: Solve for x
    x = 217,610,155.15/20,822.76
  6. Step 6: Final answer
    x = 10,450.59

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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.