Home / 16,929.82-25,401.41-12,255.71

Finding the Fourth Proportional to 16,929.82, 25,401.41 and 12,255.71

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Solution

The fourth proportional to 16,929.82, 25,401.41 and 12,255.71 is: 18,388.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,929.82 : 25,401.41 = 12,255.71 : x
  2. Step 2: Convert to fraction form
    16,929.82/25,401.41 = 12,255.71/x
  3. Step 3: Cross multiply
    16,929.82x = 25,401.41 × 12,255.71
  4. Step 4: Simplify right side
    16,929.82x = 311,312,314.55
  5. Step 5: Solve for x
    x = 311,312,314.55/16,929.82
  6. Step 6: Final answer
    x = 18,388.40

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1.5x scale

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.