Home / 25,430.24-38,147.04-8,791.88

Finding the Fourth Proportional to 25,430.24, 38,147.04 and 8,791.88

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Solution

The fourth proportional to 25,430.24, 38,147.04 and 8,791.88 is: 13,188.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,430.24 : 38,147.04 = 8,791.88 : x
  2. Step 2: Convert to fraction form
    25,430.24/38,147.04 = 8,791.88/x
  3. Step 3: Cross multiply
    25,430.24x = 38,147.04 × 8,791.88
  4. Step 4: Simplify right side
    25,430.24x = 335,384,198.04
  5. Step 5: Solve for x
    x = 335,384,198.04/25,430.24
  6. Step 6: Final answer
    x = 13,188.40

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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.