Home / 22,161.96-30,583.77-12,090.33

Finding the Fourth Proportional to 22,161.96, 30,583.77 and 12,090.33

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Solution

The fourth proportional to 22,161.96, 30,583.77 and 12,090.33 is: 16,684.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,161.96 : 30,583.77 = 12,090.33 : x
  2. Step 2: Convert to fraction form
    22,161.96/30,583.77 = 12,090.33/x
  3. Step 3: Cross multiply
    22,161.96x = 30,583.77 × 12,090.33
  4. Step 4: Simplify right side
    22,161.96x = 369,767,871.94
  5. Step 5: Solve for x
    x = 369,767,871.94/22,161.96
  6. Step 6: Final answer
    x = 16,684.80

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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.