Home / 34,181.89-47,185.39-20,757.47

Finding the Fourth Proportional to 34,181.89, 47,185.39 and 20,757.47

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Solution

The fourth proportional to 34,181.89, 47,185.39 and 20,757.47 is: 28,654.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,181.89 : 47,185.39 = 20,757.47 : x
  2. Step 2: Convert to fraction form
    34,181.89/47,185.39 = 20,757.47/x
  3. Step 3: Cross multiply
    34,181.89x = 47,185.39 × 20,757.47
  4. Step 4: Simplify right side
    34,181.89x = 979,449,107.38
  5. Step 5: Solve for x
    x = 979,449,107.38/34,181.89
  6. Step 6: Final answer
    x = 28,654.04

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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.