Home / 22,278.68-30,743.24-12,205.34

Finding the Fourth Proportional to 22,278.68, 30,743.24 and 12,205.34

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Solution

The fourth proportional to 22,278.68, 30,743.24 and 12,205.34 is: 16,842.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,278.68 : 30,743.24 = 12,205.34 : x
  2. Step 2: Convert to fraction form
    22,278.68/30,743.24 = 12,205.34/x
  3. Step 3: Cross multiply
    22,278.68x = 30,743.24 × 12,205.34
  4. Step 4: Simplify right side
    22,278.68x = 375,231,696.90
  5. Step 5: Solve for x
    x = 375,231,696.90/22,278.68
  6. Step 6: Final answer
    x = 16,842.64

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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.