Home / 20,100.85-27,739.56-11,025.64

Finding the Fourth Proportional to 20,100.85, 27,739.56 and 11,025.64

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Solution

The fourth proportional to 20,100.85, 27,739.56 and 11,025.64 is: 15,215.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,100.85 : 27,739.56 = 11,025.64 : x
  2. Step 2: Convert to fraction form
    20,100.85/27,739.56 = 11,025.64/x
  3. Step 3: Cross multiply
    20,100.85x = 27,739.56 × 11,025.64
  4. Step 4: Simplify right side
    20,100.85x = 305,846,402.32
  5. Step 5: Solve for x
    x = 305,846,402.32/20,100.85
  6. Step 6: Final answer
    x = 15,215.60

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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.