Home / 21,049.20-31,516.20-16,441.20

Finding the Fourth Proportional to 21,049.20, 31,516.20 and 16,441.20

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Solution

The fourth proportional to 21,049.20, 31,516.20 and 16,441.20 is: 24,616.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,049.20 : 31,516.20 = 16,441.20 : x
  2. Step 2: Convert to fraction form
    21,049.20/31,516.20 = 16,441.20/x
  3. Step 3: Cross multiply
    21,049.20x = 31,516.20 × 16,441.20
  4. Step 4: Simplify right side
    21,049.20x = 518,164,147.44
  5. Step 5: Solve for x
    x = 518,164,147.44/21,049.20
  6. Step 6: Final answer
    x = 24,616.81

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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.