Home / 20,136.25-27,787.62-11,183.50

Finding the Fourth Proportional to 20,136.25, 27,787.62 and 11,183.50

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Solution

The fourth proportional to 20,136.25, 27,787.62 and 11,183.50 is: 15,433.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,136.25 : 27,787.62 = 11,183.50 : x
  2. Step 2: Convert to fraction form
    20,136.25/27,787.62 = 11,183.50/x
  3. Step 3: Cross multiply
    20,136.25x = 27,787.62 × 11,183.50
  4. Step 4: Simplify right side
    20,136.25x = 310,762,848.27
  5. Step 5: Solve for x
    x = 310,762,848.27/20,136.25
  6. Step 6: Final answer
    x = 15,433.01

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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.