Home / 43,421.29-65,131.92-12,256.54

Finding the Fourth Proportional to 43,421.29, 65,131.92 and 12,256.54

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Solution

The fourth proportional to 43,421.29, 65,131.92 and 12,256.54 is: 18,384.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,421.29 : 65,131.92 = 12,256.54 : x
  2. Step 2: Convert to fraction form
    43,421.29/65,131.92 = 12,256.54/x
  3. Step 3: Cross multiply
    43,421.29x = 65,131.92 × 12,256.54
  4. Step 4: Simplify right side
    43,421.29x = 798,291,982.76
  5. Step 5: Solve for x
    x = 798,291,982.76/43,421.29
  6. Step 6: Final answer
    x = 18,384.81

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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.