Home / 43,412.58-65,126.12-13,839.48

Finding the Fourth Proportional to 43,412.58, 65,126.12 and 13,839.48

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Solution

The fourth proportional to 43,412.58, 65,126.12 and 13,839.48 is: 20,761.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,412.58 : 65,126.12 = 13,839.48 : x
  2. Step 2: Convert to fraction form
    43,412.58/65,126.12 = 13,839.48/x
  3. Step 3: Cross multiply
    43,412.58x = 65,126.12 × 13,839.48
  4. Step 4: Simplify right side
    43,412.58x = 901,311,566.02
  5. Step 5: Solve for x
    x = 901,311,566.02/43,412.58
  6. Step 6: Final answer
    x = 20,761.53

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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.