Home / 20,136.22-27,788.06-11,183.74

Finding the Fourth Proportional to 20,136.22, 27,788.06 and 11,183.74

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Solution

The fourth proportional to 20,136.22, 27,788.06 and 11,183.74 is: 15,433.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,136.22 : 27,788.06 = 11,183.74 : x
  2. Step 2: Convert to fraction form
    20,136.22/27,788.06 = 11,183.74/x
  3. Step 3: Cross multiply
    20,136.22x = 27,788.06 × 11,183.74
  4. Step 4: Simplify right side
    20,136.22x = 310,774,438.14
  5. Step 5: Solve for x
    x = 310,774,438.14/20,136.22
  6. Step 6: Final answer
    x = 15,433.60

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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.