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Finding the Fourth Proportional to 35,613.41, 53,422.92 and 11,921.09

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Solution

The fourth proportional to 35,613.41, 53,422.92 and 11,921.09 is: 17,882.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,613.41 : 53,422.92 = 11,921.09 : x
  2. Step 2: Convert to fraction form
    35,613.41/53,422.92 = 11,921.09/x
  3. Step 3: Cross multiply
    35,613.41x = 53,422.92 × 11,921.09
  4. Step 4: Simplify right side
    35,613.41x = 636,859,541.14
  5. Step 5: Solve for x
    x = 636,859,541.14/35,613.41
  6. Step 6: Final answer
    x = 17,882.58

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.