Home / 20,103.64-27,741.66-11,150.80

Finding the Fourth Proportional to 20,103.64, 27,741.66 and 11,150.80

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Solution

The fourth proportional to 20,103.64, 27,741.66 and 11,150.80 is: 15,387.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,103.64 : 27,741.66 = 11,150.80 : x
  2. Step 2: Convert to fraction form
    20,103.64/27,741.66 = 11,150.80/x
  3. Step 3: Cross multiply
    20,103.64x = 27,741.66 × 11,150.80
  4. Step 4: Simplify right side
    20,103.64x = 309,341,702.33
  5. Step 5: Solve for x
    x = 309,341,702.33/20,103.64
  6. Step 6: Final answer
    x = 15,387.35

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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.