Home / 20,714.42-28,576.80-13,997.60

Finding the Fourth Proportional to 20,714.42, 28,576.80 and 13,997.60

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Solution

The fourth proportional to 20,714.42, 28,576.80 and 13,997.60 is: 19,310.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,714.42 : 28,576.80 = 13,997.60 : x
  2. Step 2: Convert to fraction form
    20,714.42/28,576.80 = 13,997.60/x
  3. Step 3: Cross multiply
    20,714.42x = 28,576.80 × 13,997.60
  4. Step 4: Simplify right side
    20,714.42x = 400,006,615.68
  5. Step 5: Solve for x
    x = 400,006,615.68/20,714.42
  6. Step 6: Final answer
    x = 19,310.54

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.