Home / 22,613.08-31,207.28-13,181.08

Finding the Fourth Proportional to 22,613.08, 31,207.28 and 13,181.08

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Solution

The fourth proportional to 22,613.08, 31,207.28 and 13,181.08 is: 18,190.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,613.08 : 31,207.28 = 13,181.08 : x
  2. Step 2: Convert to fraction form
    22,613.08/31,207.28 = 13,181.08/x
  3. Step 3: Cross multiply
    22,613.08x = 31,207.28 × 13,181.08
  4. Step 4: Simplify right side
    22,613.08x = 411,345,654.26
  5. Step 5: Solve for x
    x = 411,345,654.26/22,613.08
  6. Step 6: Final answer
    x = 18,190.61

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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.