Home / 38,512.88-57,731.72-18,790.64

Finding the Fourth Proportional to 38,512.88, 57,731.72 and 18,790.64

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Solution

The fourth proportional to 38,512.88, 57,731.72 and 18,790.64 is: 28,167.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,512.88 : 57,731.72 = 18,790.64 : x
  2. Step 2: Convert to fraction form
    38,512.88/57,731.72 = 18,790.64/x
  3. Step 3: Cross multiply
    38,512.88x = 57,731.72 × 18,790.64
  4. Step 4: Simplify right side
    38,512.88x = 1,084,815,967.10
  5. Step 5: Solve for x
    x = 1,084,815,967.10/38,512.88
  6. Step 6: Final answer
    x = 28,167.61

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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.