Home / 25,318.82-34,890.63-18,231.86

Finding the Fourth Proportional to 25,318.82, 34,890.63 and 18,231.86

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Solution

The fourth proportional to 25,318.82, 34,890.63 and 18,231.86 is: 25,124.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,318.82 : 34,890.63 = 18,231.86 : x
  2. Step 2: Convert to fraction form
    25,318.82/34,890.63 = 18,231.86/x
  3. Step 3: Cross multiply
    25,318.82x = 34,890.63 × 18,231.86
  4. Step 4: Simplify right side
    25,318.82x = 636,121,081.47
  5. Step 5: Solve for x
    x = 636,121,081.47/25,318.82
  6. Step 6: Final answer
    x = 25,124.44

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.