Home / 20,134.62-27,783.26-11,180.90

Finding the Fourth Proportional to 20,134.62, 27,783.26 and 11,180.90

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Solution

The fourth proportional to 20,134.62, 27,783.26 and 11,180.90 is: 15,428.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,134.62 : 27,783.26 = 11,180.90 : x
  2. Step 2: Convert to fraction form
    20,134.62/27,783.26 = 11,180.90/x
  3. Step 3: Cross multiply
    20,134.62x = 27,783.26 × 11,180.90
  4. Step 4: Simplify right side
    20,134.62x = 310,641,795.83
  5. Step 5: Solve for x
    x = 310,641,795.83/20,134.62
  6. Step 6: Final answer
    x = 15,428.24

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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.