Home / 20,862.92-31,296.28-6,823.02

Finding the Fourth Proportional to 20,862.92, 31,296.28 and 6,823.02

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Solution

The fourth proportional to 20,862.92, 31,296.28 and 6,823.02 is: 10,235.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,862.92 : 31,296.28 = 6,823.02 : x
  2. Step 2: Convert to fraction form
    20,862.92/31,296.28 = 6,823.02/x
  3. Step 3: Cross multiply
    20,862.92x = 31,296.28 × 6,823.02
  4. Step 4: Simplify right side
    20,862.92x = 213,535,144.37
  5. Step 5: Solve for x
    x = 213,535,144.37/20,862.92
  6. Step 6: Final answer
    x = 10,235.15

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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.