Home / 36,542.40-54,780-13,163.12

Finding the Fourth Proportional to 36,542.40, 54,780 and 13,163.12

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Solution

The fourth proportional to 36,542.40, 54,780 and 13,163.12 is: 19,732.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,542.40 : 54,780 = 13,163.12 : x
  2. Step 2: Convert to fraction form
    36,542.40/54,780 = 13,163.12/x
  3. Step 3: Cross multiply
    36,542.40x = 54,780 × 13,163.12
  4. Step 4: Simplify right side
    36,542.40x = 721,075,713.60
  5. Step 5: Solve for x
    x = 721,075,713.60/36,542.40
  6. Step 6: Final answer
    x = 19,732.58

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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.