Home / 20,147.96-27,795.26-13,427.04

Finding the Fourth Proportional to 20,147.96, 27,795.26 and 13,427.04

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Solution

The fourth proportional to 20,147.96, 27,795.26 and 13,427.04 is: 18,523.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,147.96 : 27,795.26 = 13,427.04 : x
  2. Step 2: Convert to fraction form
    20,147.96/27,795.26 = 13,427.04/x
  3. Step 3: Cross multiply
    20,147.96x = 27,795.26 × 13,427.04
  4. Step 4: Simplify right side
    20,147.96x = 373,208,067.83
  5. Step 5: Solve for x
    x = 373,208,067.83/20,147.96
  6. Step 6: Final answer
    x = 18,523.37

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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.