Home / 21,241.42-29,313.92-12,168.41

Finding the Fourth Proportional to 21,241.42, 29,313.92 and 12,168.41

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Solution

The fourth proportional to 21,241.42, 29,313.92 and 12,168.41 is: 16,792.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,241.42 : 29,313.92 = 12,168.41 : x
  2. Step 2: Convert to fraction form
    21,241.42/29,313.92 = 12,168.41/x
  3. Step 3: Cross multiply
    21,241.42x = 29,313.92 × 12,168.41
  4. Step 4: Simplify right side
    21,241.42x = 356,703,610.14
  5. Step 5: Solve for x
    x = 356,703,610.14/21,241.42
  6. Step 6: Final answer
    x = 16,792.83

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.