Home / 21,744.99-30,006.65-12,183.21

Finding the Fourth Proportional to 21,744.99, 30,006.65 and 12,183.21

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Solution

The fourth proportional to 21,744.99, 30,006.65 and 12,183.21 is: 16,812.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,744.99 : 30,006.65 = 12,183.21 : x
  2. Step 2: Convert to fraction form
    21,744.99/30,006.65 = 12,183.21/x
  3. Step 3: Cross multiply
    21,744.99x = 30,006.65 × 12,183.21
  4. Step 4: Simplify right side
    21,744.99x = 365,577,348.80
  5. Step 5: Solve for x
    x = 365,577,348.80/21,744.99
  6. Step 6: Final answer
    x = 16,812.03

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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.