Home / 21,792.62-30,080.25-12,843.02

Finding the Fourth Proportional to 21,792.62, 30,080.25 and 12,843.02

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Solution

The fourth proportional to 21,792.62, 30,080.25 and 12,843.02 is: 17,727.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,792.62 : 30,080.25 = 12,843.02 : x
  2. Step 2: Convert to fraction form
    21,792.62/30,080.25 = 12,843.02/x
  3. Step 3: Cross multiply
    21,792.62x = 30,080.25 × 12,843.02
  4. Step 4: Simplify right side
    21,792.62x = 386,321,101.95
  5. Step 5: Solve for x
    x = 386,321,101.95/21,792.62
  6. Step 6: Final answer
    x = 17,727.16

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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.