Home / 25,880.11-38,811.91-8,345.84

Finding the Fourth Proportional to 25,880.11, 38,811.91 and 8,345.84

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Solution

The fourth proportional to 25,880.11, 38,811.91 and 8,345.84 is: 12,516.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,880.11 : 38,811.91 = 8,345.84 : x
  2. Step 2: Convert to fraction form
    25,880.11/38,811.91 = 8,345.84/x
  3. Step 3: Cross multiply
    25,880.11x = 38,811.91 × 8,345.84
  4. Step 4: Simplify right side
    25,880.11x = 323,917,791.68
  5. Step 5: Solve for x
    x = 323,917,791.68/25,880.11
  6. Step 6: Final answer
    x = 12,516.09

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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.