Home / 22,186.55-30,618.68-12,115.93

Finding the Fourth Proportional to 22,186.55, 30,618.68 and 12,115.93

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Solution

The fourth proportional to 22,186.55, 30,618.68 and 12,115.93 is: 16,720.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,186.55 : 30,618.68 = 12,115.93 : x
  2. Step 2: Convert to fraction form
    22,186.55/30,618.68 = 12,115.93/x
  3. Step 3: Cross multiply
    22,186.55x = 30,618.68 × 12,115.93
  4. Step 4: Simplify right side
    22,186.55x = 370,973,783.57
  5. Step 5: Solve for x
    x = 370,973,783.57/22,186.55
  6. Step 6: Final answer
    x = 16,720.66

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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.