Home / 21,949.26-30,287.97-13,447.50

Finding the Fourth Proportional to 21,949.26, 30,287.97 and 13,447.50

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Solution

The fourth proportional to 21,949.26, 30,287.97 and 13,447.50 is: 18,556.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,949.26 : 30,287.97 = 13,447.50 : x
  2. Step 2: Convert to fraction form
    21,949.26/30,287.97 = 13,447.50/x
  3. Step 3: Cross multiply
    21,949.26x = 30,287.97 × 13,447.50
  4. Step 4: Simplify right side
    21,949.26x = 407,297,476.58
  5. Step 5: Solve for x
    x = 407,297,476.58/21,949.26
  6. Step 6: Final answer
    x = 18,556.32

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1.5x scale

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.