Home / 38,843.55-53,575.43-28,772.42

Finding the Fourth Proportional to 38,843.55, 53,575.43 and 28,772.42

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Solution

The fourth proportional to 38,843.55, 53,575.43 and 28,772.42 is: 39,684.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,843.55 : 53,575.43 = 28,772.42 : x
  2. Step 2: Convert to fraction form
    38,843.55/53,575.43 = 28,772.42/x
  3. Step 3: Cross multiply
    38,843.55x = 53,575.43 × 28,772.42
  4. Step 4: Simplify right side
    38,843.55x = 1,541,494,361.90
  5. Step 5: Solve for x
    x = 1,541,494,361.90/38,843.55
  6. Step 6: Final answer
    x = 39,684.69

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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.