Home / 22,632.16-31,234.08-13,198.72

Finding the Fourth Proportional to 22,632.16, 31,234.08 and 13,198.72

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Solution

The fourth proportional to 22,632.16, 31,234.08 and 13,198.72 is: 18,215.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,632.16 : 31,234.08 = 13,198.72 : x
  2. Step 2: Convert to fraction form
    22,632.16/31,234.08 = 13,198.72/x
  3. Step 3: Cross multiply
    22,632.16x = 31,234.08 × 13,198.72
  4. Step 4: Simplify right side
    22,632.16x = 412,249,876.38
  5. Step 5: Solve for x
    x = 412,249,876.38/22,632.16
  6. Step 6: Final answer
    x = 18,215.22

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Double scale
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Similar ratio
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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.