Home / 22,361.35-30,858.74-12,290.83

Finding the Fourth Proportional to 22,361.35, 30,858.74 and 12,290.83

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Solution

The fourth proportional to 22,361.35, 30,858.74 and 12,290.83 is: 16,961.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,361.35 : 30,858.74 = 12,290.83 : x
  2. Step 2: Convert to fraction form
    22,361.35/30,858.74 = 12,290.83/x
  3. Step 3: Cross multiply
    22,361.35x = 30,858.74 × 12,290.83
  4. Step 4: Simplify right side
    22,361.35x = 379,279,527.35
  5. Step 5: Solve for x
    x = 379,279,527.35/22,361.35
  6. Step 6: Final answer
    x = 16,961.39

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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.