Home / 25,651.84-38,476.56-8,119.36

Finding the Fourth Proportional to 25,651.84, 38,476.56 and 8,119.36

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Solution

The fourth proportional to 25,651.84, 38,476.56 and 8,119.36 is: 12,178.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,651.84 : 38,476.56 = 8,119.36 : x
  2. Step 2: Convert to fraction form
    25,651.84/38,476.56 = 8,119.36/x
  3. Step 3: Cross multiply
    25,651.84x = 38,476.56 × 8,119.36
  4. Step 4: Simplify right side
    25,651.84x = 312,405,042.20
  5. Step 5: Solve for x
    x = 312,405,042.20/25,651.84
  6. Step 6: Final answer
    x = 12,178.66

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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.