Home / 25,940.86-38,916.77-8,409.33

Finding the Fourth Proportional to 25,940.86, 38,916.77 and 8,409.33

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Solution

The fourth proportional to 25,940.86, 38,916.77 and 8,409.33 is: 12,615.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,940.86 : 38,916.77 = 8,409.33 : x
  2. Step 2: Convert to fraction form
    25,940.86/38,916.77 = 8,409.33/x
  3. Step 3: Cross multiply
    25,940.86x = 38,916.77 × 8,409.33
  4. Step 4: Simplify right side
    25,940.86x = 327,263,919.42
  5. Step 5: Solve for x
    x = 327,263,919.42/25,940.86
  6. Step 6: Final answer
    x = 12,615.77

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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.