Home / 20,735.68-31,080.48-8,252.44

Finding the Fourth Proportional to 20,735.68, 31,080.48 and 8,252.44

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Solution

The fourth proportional to 20,735.68, 31,080.48 and 8,252.44 is: 12,369.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,735.68 : 31,080.48 = 8,252.44 : x
  2. Step 2: Convert to fraction form
    20,735.68/31,080.48 = 8,252.44/x
  3. Step 3: Cross multiply
    20,735.68x = 31,080.48 × 8,252.44
  4. Step 4: Simplify right side
    20,735.68x = 256,489,796.37
  5. Step 5: Solve for x
    x = 256,489,796.37/20,735.68
  6. Step 6: Final answer
    x = 12,369.49

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1.5x scale

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.