Home / 22,231.44-30,682.04-12,799.80

Finding the Fourth Proportional to 22,231.44, 30,682.04 and 12,799.80

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Solution

The fourth proportional to 22,231.44, 30,682.04 and 12,799.80 is: 17,665.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,231.44 : 30,682.04 = 12,799.80 : x
  2. Step 2: Convert to fraction form
    22,231.44/30,682.04 = 12,799.80/x
  3. Step 3: Cross multiply
    22,231.44x = 30,682.04 × 12,799.80
  4. Step 4: Simplify right side
    22,231.44x = 392,723,975.59
  5. Step 5: Solve for x
    x = 392,723,975.59/22,231.44
  6. Step 6: Final answer
    x = 17,665.25

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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.