Home / 20,714.73-28,577.23-13,997.91

Finding the Fourth Proportional to 20,714.73, 28,577.23 and 13,997.91

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Solution

The fourth proportional to 20,714.73, 28,577.23 and 13,997.91 is: 19,310.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,714.73 : 28,577.23 = 13,997.91 : x
  2. Step 2: Convert to fraction form
    20,714.73/28,577.23 = 13,997.91/x
  3. Step 3: Cross multiply
    20,714.73x = 28,577.23 × 13,997.91
  4. Step 4: Simplify right side
    20,714.73x = 400,021,458.59
  5. Step 5: Solve for x
    x = 400,021,458.59/20,714.73
  6. Step 6: Final answer
    x = 19,310.97

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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.