Home / 14,099.20-21,148.80-13,451.20

Finding the Fourth Proportional to 14,099.20, 21,148.80 and 13,451.20

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Solution

The fourth proportional to 14,099.20, 21,148.80 and 13,451.20 is: 20,176.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,099.20 : 21,148.80 = 13,451.20 : x
  2. Step 2: Convert to fraction form
    14,099.20/21,148.80 = 13,451.20/x
  3. Step 3: Cross multiply
    14,099.20x = 21,148.80 × 13,451.20
  4. Step 4: Simplify right side
    14,099.20x = 284,476,738.56
  5. Step 5: Solve for x
    x = 284,476,738.56/14,099.20
  6. Step 6: Final answer
    x = 20,176.80

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Similar ratio
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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.