Home / 30,163.59-45,186.53-19,743.75

Finding the Fourth Proportional to 30,163.59, 45,186.53 and 19,743.75

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Solution

The fourth proportional to 30,163.59, 45,186.53 and 19,743.75 is: 29,577.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,163.59 : 45,186.53 = 19,743.75 : x
  2. Step 2: Convert to fraction form
    30,163.59/45,186.53 = 19,743.75/x
  3. Step 3: Cross multiply
    30,163.59x = 45,186.53 × 19,743.75
  4. Step 4: Simplify right side
    30,163.59x = 892,151,452.97
  5. Step 5: Solve for x
    x = 892,151,452.97/30,163.59
  6. Step 6: Final answer
    x = 29,577.10

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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.