Home / 25,429.24-38,145.54-8,790.88

Finding the Fourth Proportional to 25,429.24, 38,145.54 and 8,790.88

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Solution

The fourth proportional to 25,429.24, 38,145.54 and 8,790.88 is: 13,186.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,429.24 : 38,145.54 = 8,790.88 : x
  2. Step 2: Convert to fraction form
    25,429.24/38,145.54 = 8,790.88/x
  3. Step 3: Cross multiply
    25,429.24x = 38,145.54 × 8,790.88
  4. Step 4: Simplify right side
    25,429.24x = 335,332,864.68
  5. Step 5: Solve for x
    x = 335,332,864.68/25,429.24
  6. Step 6: Final answer
    x = 13,186.90

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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.