Home / 20,675.25-31,013.18-5,092.88

Finding the Fourth Proportional to 20,675.25, 31,013.18 and 5,092.88

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Solution

The fourth proportional to 20,675.25, 31,013.18 and 5,092.88 is: 7,639.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,675.25 : 31,013.18 = 5,092.88 : x
  2. Step 2: Convert to fraction form
    20,675.25/31,013.18 = 5,092.88/x
  3. Step 3: Cross multiply
    20,675.25x = 31,013.18 × 5,092.88
  4. Step 4: Simplify right side
    20,675.25x = 157,946,242.73
  5. Step 5: Solve for x
    x = 157,946,242.73/20,675.25
  6. Step 6: Final answer
    x = 7,639.39

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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.