Home / 20,154.42-27,812.62-11,201.84

Finding the Fourth Proportional to 20,154.42, 27,812.62 and 11,201.84

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Solution

The fourth proportional to 20,154.42, 27,812.62 and 11,201.84 is: 15,458.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,154.42 : 27,812.62 = 11,201.84 : x
  2. Step 2: Convert to fraction form
    20,154.42/27,812.62 = 11,201.84/x
  3. Step 3: Cross multiply
    20,154.42x = 27,812.62 × 11,201.84
  4. Step 4: Simplify right side
    20,154.42x = 311,552,591.89
  5. Step 5: Solve for x
    x = 311,552,591.89/20,154.42
  6. Step 6: Final answer
    x = 15,458.28

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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.