Home / 22,186.62-30,617.61-12,115.17

Finding the Fourth Proportional to 22,186.62, 30,617.61 and 12,115.17

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Solution

The fourth proportional to 22,186.62, 30,617.61 and 12,115.17 is: 16,718.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,186.62 : 30,617.61 = 12,115.17 : x
  2. Step 2: Convert to fraction form
    22,186.62/30,617.61 = 12,115.17/x
  3. Step 3: Cross multiply
    22,186.62x = 30,617.61 × 12,115.17
  4. Step 4: Simplify right side
    22,186.62x = 370,937,550.14
  5. Step 5: Solve for x
    x = 370,937,550.14/22,186.62
  6. Step 6: Final answer
    x = 16,718.98

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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.