Home / 22,276.90-30,742.44-12,205.12

Finding the Fourth Proportional to 22,276.90, 30,742.44 and 12,205.12

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Solution

The fourth proportional to 22,276.90, 30,742.44 and 12,205.12 is: 16,843.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,276.90 : 30,742.44 = 12,205.12 : x
  2. Step 2: Convert to fraction form
    22,276.90/30,742.44 = 12,205.12/x
  3. Step 3: Cross multiply
    22,276.90x = 30,742.44 × 12,205.12
  4. Step 4: Simplify right side
    22,276.90x = 375,215,169.29
  5. Step 5: Solve for x
    x = 375,215,169.29/22,276.90
  6. Step 6: Final answer
    x = 16,843.24

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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.