Home / 14,213.21-21,320.53-3,825.05

Finding the Fourth Proportional to 14,213.21, 21,320.53 and 3,825.05

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Solution

The fourth proportional to 14,213.21, 21,320.53 and 3,825.05 is: 5,737.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,213.21 : 21,320.53 = 3,825.05 : x
  2. Step 2: Convert to fraction form
    14,213.21/21,320.53 = 3,825.05/x
  3. Step 3: Cross multiply
    14,213.21x = 21,320.53 × 3,825.05
  4. Step 4: Simplify right side
    14,213.21x = 81,551,977.11
  5. Step 5: Solve for x
    x = 81,551,977.11/14,213.21
  6. Step 6: Final answer
    x = 5,737.76

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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.