Home / 22,195.18-30,626.58-12,636.30

Finding the Fourth Proportional to 22,195.18, 30,626.58 and 12,636.30

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Solution

The fourth proportional to 22,195.18, 30,626.58 and 12,636.30 is: 17,436.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,195.18 : 30,626.58 = 12,636.30 : x
  2. Step 2: Convert to fraction form
    22,195.18/30,626.58 = 12,636.30/x
  3. Step 3: Cross multiply
    22,195.18x = 30,626.58 × 12,636.30
  4. Step 4: Simplify right side
    22,195.18x = 387,006,652.85
  5. Step 5: Solve for x
    x = 387,006,652.85/22,195.18
  6. Step 6: Final answer
    x = 17,436.52

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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.