Home / 20,375.11-30,556.44-14,090.39

Finding the Fourth Proportional to 20,375.11, 30,556.44 and 14,090.39

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Solution

The fourth proportional to 20,375.11, 30,556.44 and 14,090.39 is: 21,131.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,375.11 : 30,556.44 = 14,090.39 : x
  2. Step 2: Convert to fraction form
    20,375.11/30,556.44 = 14,090.39/x
  3. Step 3: Cross multiply
    20,375.11x = 30,556.44 × 14,090.39
  4. Step 4: Simplify right side
    20,375.11x = 430,551,933.38
  5. Step 5: Solve for x
    x = 430,551,933.38/20,375.11
  6. Step 6: Final answer
    x = 21,131.27

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.