Home / 20,976.53-31,464.63-8,496.36

Finding the Fourth Proportional to 20,976.53, 31,464.63 and 8,496.36

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Solution

The fourth proportional to 20,976.53, 31,464.63 and 8,496.36 is: 12,744.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,976.53 : 31,464.63 = 8,496.36 : x
  2. Step 2: Convert to fraction form
    20,976.53/31,464.63 = 8,496.36/x
  3. Step 3: Cross multiply
    20,976.53x = 31,464.63 × 8,496.36
  4. Step 4: Simplify right side
    20,976.53x = 267,334,823.75
  5. Step 5: Solve for x
    x = 267,334,823.75/20,976.53
  6. Step 6: Final answer
    x = 12,744.48

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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.