Home / 25,789.05-38,684.30-12,459.96

Finding the Fourth Proportional to 25,789.05, 38,684.30 and 12,459.96

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Solution

The fourth proportional to 25,789.05, 38,684.30 and 12,459.96 is: 18,690.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,789.05 : 38,684.30 = 12,459.96 : x
  2. Step 2: Convert to fraction form
    25,789.05/38,684.30 = 12,459.96/x
  3. Step 3: Cross multiply
    25,789.05x = 38,684.30 × 12,459.96
  4. Step 4: Simplify right side
    25,789.05x = 482,004,768.33
  5. Step 5: Solve for x
    x = 482,004,768.33/25,789.05
  6. Step 6: Final answer
    x = 18,690.29

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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.