Home / 20,124.54-27,771.99-11,050.30

Finding the Fourth Proportional to 20,124.54, 27,771.99 and 11,050.30

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Solution

The fourth proportional to 20,124.54, 27,771.99 and 11,050.30 is: 15,249.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,124.54 : 27,771.99 = 11,050.30 : x
  2. Step 2: Convert to fraction form
    20,124.54/27,771.99 = 11,050.30/x
  3. Step 3: Cross multiply
    20,124.54x = 27,771.99 × 11,050.30
  4. Step 4: Simplify right side
    20,124.54x = 306,888,720.31
  5. Step 5: Solve for x
    x = 306,888,720.31/20,124.54
  6. Step 6: Final answer
    x = 15,249.48

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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.