Home / 20,136.59-27,788.51-11,183.86

Finding the Fourth Proportional to 20,136.59, 27,788.51 and 11,183.86

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Solution

The fourth proportional to 20,136.59, 27,788.51 and 11,183.86 is: 15,433.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,136.59 : 27,788.51 = 11,183.86 : x
  2. Step 2: Convert to fraction form
    20,136.59/27,788.51 = 11,183.86/x
  3. Step 3: Cross multiply
    20,136.59x = 27,788.51 × 11,183.86
  4. Step 4: Simplify right side
    20,136.59x = 310,782,763.94
  5. Step 5: Solve for x
    x = 310,782,763.94/20,136.59
  6. Step 6: Final answer
    x = 15,433.74

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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.