Home / 17,395.29-23,979.31-13,611.88

Finding the Fourth Proportional to 17,395.29, 23,979.31 and 13,611.88

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Solution

The fourth proportional to 17,395.29, 23,979.31 and 13,611.88 is: 18,763.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,395.29 : 23,979.31 = 13,611.88 : x
  2. Step 2: Convert to fraction form
    17,395.29/23,979.31 = 13,611.88/x
  3. Step 3: Cross multiply
    17,395.29x = 23,979.31 × 13,611.88
  4. Step 4: Simplify right side
    17,395.29x = 326,403,486.15
  5. Step 5: Solve for x
    x = 326,403,486.15/17,395.29
  6. Step 6: Final answer
    x = 18,763.90

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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.