Home / 43,418.22-65,128.01-13,860.92

Finding the Fourth Proportional to 43,418.22, 65,128.01 and 13,860.92

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Solution

The fourth proportional to 43,418.22, 65,128.01 and 13,860.92 is: 20,791.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,418.22 : 65,128.01 = 13,860.92 : x
  2. Step 2: Convert to fraction form
    43,418.22/65,128.01 = 13,860.92/x
  3. Step 3: Cross multiply
    43,418.22x = 65,128.01 × 13,860.92
  4. Step 4: Simplify right side
    43,418.22x = 902,733,741.42
  5. Step 5: Solve for x
    x = 902,733,741.42/43,418.22
  6. Step 6: Final answer
    x = 20,791.59

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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.