Home / 20,714.48-31,072.50-5,723.12

Finding the Fourth Proportional to 20,714.48, 31,072.50 and 5,723.12

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Solution

The fourth proportional to 20,714.48, 31,072.50 and 5,723.12 is: 8,584.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,714.48 : 31,072.50 = 5,723.12 : x
  2. Step 2: Convert to fraction form
    20,714.48/31,072.50 = 5,723.12/x
  3. Step 3: Cross multiply
    20,714.48x = 31,072.50 × 5,723.12
  4. Step 4: Simplify right side
    20,714.48x = 177,831,646.20
  5. Step 5: Solve for x
    x = 177,831,646.20/20,714.48
  6. Step 6: Final answer
    x = 8,584.90

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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.