Home / 20,997.64-28,976.24-12,044.60

Finding the Fourth Proportional to 20,997.64, 28,976.24 and 12,044.60

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Solution

The fourth proportional to 20,997.64, 28,976.24 and 12,044.60 is: 16,621.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,997.64 : 28,976.24 = 12,044.60 : x
  2. Step 2: Convert to fraction form
    20,997.64/28,976.24 = 12,044.60/x
  3. Step 3: Cross multiply
    20,997.64x = 28,976.24 × 12,044.60
  4. Step 4: Simplify right side
    20,997.64x = 349,007,220.30
  5. Step 5: Solve for x
    x = 349,007,220.30/20,997.64
  6. Step 6: Final answer
    x = 16,621.26

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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.