Home / 14,218.46-21,327.68-3,830.21

Finding the Fourth Proportional to 14,218.46, 21,327.68 and 3,830.21

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Solution

The fourth proportional to 14,218.46, 21,327.68 and 3,830.21 is: 5,745.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,218.46 : 21,327.68 = 3,830.21 : x
  2. Step 2: Convert to fraction form
    14,218.46/21,327.68 = 3,830.21/x
  3. Step 3: Cross multiply
    14,218.46x = 21,327.68 × 3,830.21
  4. Step 4: Simplify right side
    14,218.46x = 81,689,493.21
  5. Step 5: Solve for x
    x = 81,689,493.21/14,218.46
  6. Step 6: Final answer
    x = 5,745.31

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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.