Home / 20,197.58-27,871.64-11,245.86

Finding the Fourth Proportional to 20,197.58, 27,871.64 and 11,245.86

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Solution

The fourth proportional to 20,197.58, 27,871.64 and 11,245.86 is: 15,518.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,197.58 : 27,871.64 = 11,245.86 : x
  2. Step 2: Convert to fraction form
    20,197.58/27,871.64 = 11,245.86/x
  3. Step 3: Cross multiply
    20,197.58x = 27,871.64 × 11,245.86
  4. Step 4: Simplify right side
    20,197.58x = 313,440,505.18
  5. Step 5: Solve for x
    x = 313,440,505.18/20,197.58
  6. Step 6: Final answer
    x = 15,518.72

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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.