Home / 20,099.83-27,737.33-11,147.14

Finding the Fourth Proportional to 20,099.83, 27,737.33 and 11,147.14

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Solution

The fourth proportional to 20,099.83, 27,737.33 and 11,147.14 is: 15,382.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,099.83 : 27,737.33 = 11,147.14 : x
  2. Step 2: Convert to fraction form
    20,099.83/27,737.33 = 11,147.14/x
  3. Step 3: Cross multiply
    20,099.83x = 27,737.33 × 11,147.14
  4. Step 4: Simplify right side
    20,099.83x = 309,191,762.05
  5. Step 5: Solve for x
    x = 309,191,762.05/20,099.83
  6. Step 6: Final answer
    x = 15,382.81

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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.