Home / 20,127.06-30,183.77-7,644.08

Finding the Fourth Proportional to 20,127.06, 30,183.77 and 7,644.08

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Solution

The fourth proportional to 20,127.06, 30,183.77 and 7,644.08 is: 11,463.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,127.06 : 30,183.77 = 7,644.08 : x
  2. Step 2: Convert to fraction form
    20,127.06/30,183.77 = 7,644.08/x
  3. Step 3: Cross multiply
    20,127.06x = 30,183.77 × 7,644.08
  4. Step 4: Simplify right side
    20,127.06x = 230,726,963.44
  5. Step 5: Solve for x
    x = 230,726,963.44/20,127.06
  6. Step 6: Final answer
    x = 11,463.52

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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.