Home / 20,806.92-31,192.56-7,652.52

Finding the Fourth Proportional to 20,806.92, 31,192.56 and 7,652.52

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Solution

The fourth proportional to 20,806.92, 31,192.56 and 7,652.52 is: 11,472.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,806.92 : 31,192.56 = 7,652.52 : x
  2. Step 2: Convert to fraction form
    20,806.92/31,192.56 = 7,652.52/x
  3. Step 3: Cross multiply
    20,806.92x = 31,192.56 × 7,652.52
  4. Step 4: Simplify right side
    20,806.92x = 238,701,689.25
  5. Step 5: Solve for x
    x = 238,701,689.25/20,806.92
  6. Step 6: Final answer
    x = 11,472.23

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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.