Home / 20,245.42-27,941.43-11,747.71

Finding the Fourth Proportional to 20,245.42, 27,941.43 and 11,747.71

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Solution

The fourth proportional to 20,245.42, 27,941.43 and 11,747.71 is: 16,213.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,245.42 : 27,941.43 = 11,747.71 : x
  2. Step 2: Convert to fraction form
    20,245.42/27,941.43 = 11,747.71/x
  3. Step 3: Cross multiply
    20,245.42x = 27,941.43 × 11,747.71
  4. Step 4: Simplify right side
    20,245.42x = 328,247,816.63
  5. Step 5: Solve for x
    x = 328,247,816.63/20,245.42
  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.