Home / 25,578.99-38,370.57-8,938.65

Finding the Fourth Proportional to 25,578.99, 38,370.57 and 8,938.65

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Solution

The fourth proportional to 25,578.99, 38,370.57 and 8,938.65 is: 13,408.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,578.99 : 38,370.57 = 8,938.65 : x
  2. Step 2: Convert to fraction form
    25,578.99/38,370.57 = 8,938.65/x
  3. Step 3: Cross multiply
    25,578.99x = 38,370.57 × 8,938.65
  4. Step 4: Simplify right side
    25,578.99x = 342,981,095.53
  5. Step 5: Solve for x
    x = 342,981,095.53/25,578.99
  6. Step 6: Final answer
    x = 13,408.70

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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.