Home / 22,186.54-30,616.98-12,115.06

Finding the Fourth Proportional to 22,186.54, 30,616.98 and 12,115.06

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Solution

The fourth proportional to 22,186.54, 30,616.98 and 12,115.06 is: 16,718.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,186.54 : 30,616.98 = 12,115.06 : x
  2. Step 2: Convert to fraction form
    22,186.54/30,616.98 = 12,115.06/x
  3. Step 3: Cross multiply
    22,186.54x = 30,616.98 × 12,115.06
  4. Step 4: Simplify right side
    22,186.54x = 370,926,549.72
  5. Step 5: Solve for x
    x = 370,926,549.72/22,186.54
  6. Step 6: Final answer
    x = 16,718.54

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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.