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Finding the Fourth Proportional to 38,361.42, 57,576.42 and 19,654.20

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Solution

The fourth proportional to 38,361.42, 57,576.42 and 19,654.20 is: 29,498.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,361.42 : 57,576.42 = 19,654.20 : x
  2. Step 2: Convert to fraction form
    38,361.42/57,576.42 = 19,654.20/x
  3. Step 3: Cross multiply
    38,361.42x = 57,576.42 × 19,654.20
  4. Step 4: Simplify right side
    38,361.42x = 1,131,618,473.96
  5. Step 5: Solve for x
    x = 1,131,618,473.96/38,361.42
  6. Step 6: Final answer
    x = 29,498.87

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1.5x scale

Why These Related Problems?

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