Home / 25,979.96-38,974.03-8,445.69

Finding the Fourth Proportional to 25,979.96, 38,974.03 and 8,445.69

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Solution

The fourth proportional to 25,979.96, 38,974.03 and 8,445.69 is: 12,669.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,979.96 : 38,974.03 = 8,445.69 : x
  2. Step 2: Convert to fraction form
    25,979.96/38,974.03 = 8,445.69/x
  3. Step 3: Cross multiply
    25,979.96x = 38,974.03 × 8,445.69
  4. Step 4: Simplify right side
    25,979.96x = 329,162,554.32
  5. Step 5: Solve for x
    x = 329,162,554.32/25,979.96
  6. Step 6: Final answer
    x = 12,669.86

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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.