Home / 20,766.39-31,154.52-6,726.42

Finding the Fourth Proportional to 20,766.39, 31,154.52 and 6,726.42

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Solution

The fourth proportional to 20,766.39, 31,154.52 and 6,726.42 is: 10,091.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,766.39 : 31,154.52 = 6,726.42 : x
  2. Step 2: Convert to fraction form
    20,766.39/31,154.52 = 6,726.42/x
  3. Step 3: Cross multiply
    20,766.39x = 31,154.52 × 6,726.42
  4. Step 4: Simplify right side
    20,766.39x = 209,558,386.42
  5. Step 5: Solve for x
    x = 209,558,386.42/20,766.39
  6. Step 6: Final answer
    x = 10,091.23

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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.