Home / 20,083.29-27,718.37-11,583.89

Finding the Fourth Proportional to 20,083.29, 27,718.37 and 11,583.89

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Solution

The fourth proportional to 20,083.29, 27,718.37 and 11,583.89 is: 15,987.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,083.29 : 27,718.37 = 11,583.89 : x
  2. Step 2: Convert to fraction form
    20,083.29/27,718.37 = 11,583.89/x
  3. Step 3: Cross multiply
    20,083.29x = 27,718.37 × 11,583.89
  4. Step 4: Simplify right side
    20,083.29x = 321,086,352.55
  5. Step 5: Solve for x
    x = 321,086,352.55/20,083.29
  6. Step 6: Final answer
    x = 15,987.74

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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.