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Finding the Fourth Proportional to 27,361.78, 37,790.39 and 18,393.73

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Solution

The fourth proportional to 27,361.78, 37,790.39 and 18,393.73 is: 25,404.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,361.78 : 37,790.39 = 18,393.73 : x
  2. Step 2: Convert to fraction form
    27,361.78/37,790.39 = 18,393.73/x
  3. Step 3: Cross multiply
    27,361.78x = 37,790.39 × 18,393.73
  4. Step 4: Simplify right side
    27,361.78x = 695,106,181.76
  5. Step 5: Solve for x
    x = 695,106,181.76/27,361.78
  6. Step 6: Final answer
    x = 25,404.28

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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.