Home / 42,324.24-63,431.69-20,144.42

Finding the Fourth Proportional to 42,324.24, 63,431.69 and 20,144.42

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Solution

The fourth proportional to 42,324.24, 63,431.69 and 20,144.42 is: 30,190.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,324.24 : 63,431.69 = 20,144.42 : x
  2. Step 2: Convert to fraction form
    42,324.24/63,431.69 = 20,144.42/x
  3. Step 3: Cross multiply
    42,324.24x = 63,431.69 × 20,144.42
  4. Step 4: Simplify right side
    42,324.24x = 1,277,794,186.79
  5. Step 5: Solve for x
    x = 1,277,794,186.79/42,324.24
  6. Step 6: Final answer
    x = 30,190.60

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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.