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Finding the Fourth Proportional to 38,308.52, 52,899 and 28,254.40

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Solution

The fourth proportional to 38,308.52, 52,899 and 28,254.40 is: 39,015.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,308.52 : 52,899 = 28,254.40 : x
  2. Step 2: Convert to fraction form
    38,308.52/52,899 = 28,254.40/x
  3. Step 3: Cross multiply
    38,308.52x = 52,899 × 28,254.40
  4. Step 4: Simplify right side
    38,308.52x = 1,494,629,505.60
  5. Step 5: Solve for x
    x = 1,494,629,505.60/38,308.52
  6. Step 6: Final answer
    x = 39,015.59

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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.