Home / 22,186.80-30,617.94-12,115.05

Finding the Fourth Proportional to 22,186.80, 30,617.94 and 12,115.05

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Solution

The fourth proportional to 22,186.80, 30,617.94 and 12,115.05 is: 16,718.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,186.80 : 30,617.94 = 12,115.05 : x
  2. Step 2: Convert to fraction form
    22,186.80/30,617.94 = 12,115.05/x
  3. Step 3: Cross multiply
    22,186.80x = 30,617.94 × 12,115.05
  4. Step 4: Simplify right side
    22,186.80x = 370,937,874.00
  5. Step 5: Solve for x
    x = 370,937,874.00/22,186.80
  6. Step 6: Final answer
    x = 16,718.85

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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.