Home / 20,245.07-27,938.22-11,748.86

Finding the Fourth Proportional to 20,245.07, 27,938.22 and 11,748.86

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Solution

The fourth proportional to 20,245.07, 27,938.22 and 11,748.86 is: 16,213.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,245.07 : 27,938.22 = 11,748.86 : x
  2. Step 2: Convert to fraction form
    20,245.07/27,938.22 = 11,748.86/x
  3. Step 3: Cross multiply
    20,245.07x = 27,938.22 × 11,748.86
  4. Step 4: Simplify right side
    20,245.07x = 328,242,235.43
  5. Step 5: Solve for x
    x = 328,242,235.43/20,245.07
  6. Step 6: Final answer
    x = 16,213.44

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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.