Home / 22,021.75-30,382.94-12,329.77

Finding the Fourth Proportional to 22,021.75, 30,382.94 and 12,329.77

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Solution

The fourth proportional to 22,021.75, 30,382.94 and 12,329.77 is: 17,011.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,021.75 : 30,382.94 = 12,329.77 : x
  2. Step 2: Convert to fraction form
    22,021.75/30,382.94 = 12,329.77/x
  3. Step 3: Cross multiply
    22,021.75x = 30,382.94 × 12,329.77
  4. Step 4: Simplify right side
    22,021.75x = 374,614,600.47
  5. Step 5: Solve for x
    x = 374,614,600.47/22,021.75
  6. Step 6: Final answer
    x = 17,011.12

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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.