Home / 20,732.52-31,076.18-10,181.60

Finding the Fourth Proportional to 20,732.52, 31,076.18 and 10,181.60

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Solution

The fourth proportional to 20,732.52, 31,076.18 and 10,181.60 is: 15,261.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,732.52 : 31,076.18 = 10,181.60 : x
  2. Step 2: Convert to fraction form
    20,732.52/31,076.18 = 10,181.60/x
  3. Step 3: Cross multiply
    20,732.52x = 31,076.18 × 10,181.60
  4. Step 4: Simplify right side
    20,732.52x = 316,405,234.29
  5. Step 5: Solve for x
    x = 316,405,234.29/20,732.52
  6. Step 6: Final answer
    x = 15,261.30

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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.