Home / 20,696.76-31,046.36-6,463.31

Finding the Fourth Proportional to 20,696.76, 31,046.36 and 6,463.31

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Solution

The fourth proportional to 20,696.76, 31,046.36 and 6,463.31 is: 9,695.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,696.76 : 31,046.36 = 6,463.31 : x
  2. Step 2: Convert to fraction form
    20,696.76/31,046.36 = 6,463.31/x
  3. Step 3: Cross multiply
    20,696.76x = 31,046.36 × 6,463.31
  4. Step 4: Simplify right side
    20,696.76x = 200,662,061.50
  5. Step 5: Solve for x
    x = 200,662,061.50/20,696.76
  6. Step 6: Final answer
    x = 9,695.34

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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.