Home / 43,820.46-65,739.54-13,839.39

Finding the Fourth Proportional to 43,820.46, 65,739.54 and 13,839.39

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Solution

The fourth proportional to 43,820.46, 65,739.54 and 13,839.39 is: 20,761.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,820.46 : 65,739.54 = 13,839.39 : x
  2. Step 2: Convert to fraction form
    43,820.46/65,739.54 = 13,839.39/x
  3. Step 3: Cross multiply
    43,820.46x = 65,739.54 × 13,839.39
  4. Step 4: Simplify right side
    43,820.46x = 909,795,132.48
  5. Step 5: Solve for x
    x = 909,795,132.48/43,820.46
  6. Step 6: Final answer
    x = 20,761.88

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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.