Home / 22,186.19-30,618.19-12,115.57

Finding the Fourth Proportional to 22,186.19, 30,618.19 and 12,115.57

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Solution

The fourth proportional to 22,186.19, 30,618.19 and 12,115.57 is: 16,720.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,186.19 : 30,618.19 = 12,115.57 : x
  2. Step 2: Convert to fraction form
    22,186.19/30,618.19 = 12,115.57/x
  3. Step 3: Cross multiply
    22,186.19x = 30,618.19 × 12,115.57
  4. Step 4: Simplify right side
    22,186.19x = 370,956,763.64
  5. Step 5: Solve for x
    x = 370,956,763.64/22,186.19
  6. Step 6: Final answer
    x = 16,720.17

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Half scale
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Double scale
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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.