Home / 22,257.38-30,715.55-12,185.65

Finding the Fourth Proportional to 22,257.38, 30,715.55 and 12,185.65

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Solution

The fourth proportional to 22,257.38, 30,715.55 and 12,185.65 is: 16,816.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,257.38 : 30,715.55 = 12,185.65 : x
  2. Step 2: Convert to fraction form
    22,257.38/30,715.55 = 12,185.65/x
  3. Step 3: Cross multiply
    22,257.38x = 30,715.55 × 12,185.65
  4. Step 4: Simplify right side
    22,257.38x = 374,288,941.86
  5. Step 5: Solve for x
    x = 374,288,941.86/22,257.38
  6. Step 6: Final answer
    x = 16,816.40

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Half scale
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Double scale
Find fourth proportional to 22,258.38, 30,716.93 and 12,186.65
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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.