Home / 25,919.43-38,880.90-8,815.35

Finding the Fourth Proportional to 25,919.43, 38,880.90 and 8,815.35

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Solution

The fourth proportional to 25,919.43, 38,880.90 and 8,815.35 is: 13,223.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,919.43 : 38,880.90 = 8,815.35 : x
  2. Step 2: Convert to fraction form
    25,919.43/38,880.90 = 8,815.35/x
  3. Step 3: Cross multiply
    25,919.43x = 38,880.90 × 8,815.35
  4. Step 4: Simplify right side
    25,919.43x = 342,748,794.94
  5. Step 5: Solve for x
    x = 342,748,794.94/25,919.43
  6. Step 6: Final answer
    x = 13,223.62

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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.