Home / 20,808.23-28,708.31-11,849.37

Finding the Fourth Proportional to 20,808.23, 28,708.31 and 11,849.37

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Solution

The fourth proportional to 20,808.23, 28,708.31 and 11,849.37 is: 16,348.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,808.23 : 28,708.31 = 11,849.37 : x
  2. Step 2: Convert to fraction form
    20,808.23/28,708.31 = 11,849.37/x
  3. Step 3: Cross multiply
    20,808.23x = 28,708.31 × 11,849.37
  4. Step 4: Simplify right side
    20,808.23x = 340,175,328.02
  5. Step 5: Solve for x
    x = 340,175,328.02/20,808.23
  6. Step 6: Final answer
    x = 16,348.12

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.