Home / 20,359.89-27,942.89-18,671.04

Finding the Fourth Proportional to 20,359.89, 27,942.89 and 18,671.04

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Solution

The fourth proportional to 20,359.89, 27,942.89 and 18,671.04 is: 25,625.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,359.89 : 27,942.89 = 18,671.04 : x
  2. Step 2: Convert to fraction form
    20,359.89/27,942.89 = 18,671.04/x
  3. Step 3: Cross multiply
    20,359.89x = 27,942.89 × 18,671.04
  4. Step 4: Simplify right side
    20,359.89x = 521,722,723.55
  5. Step 5: Solve for x
    x = 521,722,723.55/20,359.89
  6. Step 6: Final answer
    x = 25,625.03

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.