Home / 22,203.64-30,640.66-12,131.87

Finding the Fourth Proportional to 22,203.64, 30,640.66 and 12,131.87

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Solution

The fourth proportional to 22,203.64, 30,640.66 and 12,131.87 is: 16,741.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,203.64 : 30,640.66 = 12,131.87 : x
  2. Step 2: Convert to fraction form
    22,203.64/30,640.66 = 12,131.87/x
  3. Step 3: Cross multiply
    22,203.64x = 30,640.66 × 12,131.87
  4. Step 4: Simplify right side
    22,203.64x = 371,728,503.83
  5. Step 5: Solve for x
    x = 371,728,503.83/22,203.64
  6. Step 6: Final answer
    x = 16,741.78

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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.