Home / 21,797.41-30,080.14-12,845.29

Finding the Fourth Proportional to 21,797.41, 30,080.14 and 12,845.29

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Solution

The fourth proportional to 21,797.41, 30,080.14 and 12,845.29 is: 17,726.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,797.41 : 30,080.14 = 12,845.29 : x
  2. Step 2: Convert to fraction form
    21,797.41/30,080.14 = 12,845.29/x
  3. Step 3: Cross multiply
    21,797.41x = 30,080.14 × 12,845.29
  4. Step 4: Simplify right side
    21,797.41x = 386,388,121.54
  5. Step 5: Solve for x
    x = 386,388,121.54/21,797.41
  6. Step 6: Final answer
    x = 17,726.33

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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.