Home / 22,359.19-30,855.68-12,150.20

Finding the Fourth Proportional to 22,359.19, 30,855.68 and 12,150.20

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Solution

The fourth proportional to 22,359.19, 30,855.68 and 12,150.20 is: 16,767.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,359.19 : 30,855.68 = 12,150.20 : x
  2. Step 2: Convert to fraction form
    22,359.19/30,855.68 = 12,150.20/x
  3. Step 3: Cross multiply
    22,359.19x = 30,855.68 × 12,150.20
  4. Step 4: Simplify right side
    22,359.19x = 374,902,813.43
  5. Step 5: Solve for x
    x = 374,902,813.43/22,359.19
  6. Step 6: Final answer
    x = 16,767.28

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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.