Home / 22,361.20-30,856.94-12,290.34

Finding the Fourth Proportional to 22,361.20, 30,856.94 and 12,290.34

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Solution

The fourth proportional to 22,361.20, 30,856.94 and 12,290.34 is: 16,959.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,361.20 : 30,856.94 = 12,290.34 : x
  2. Step 2: Convert to fraction form
    22,361.20/30,856.94 = 12,290.34/x
  3. Step 3: Cross multiply
    22,361.20x = 30,856.94 × 12,290.34
  4. Step 4: Simplify right side
    22,361.20x = 379,242,283.96
  5. Step 5: Solve for x
    x = 379,242,283.96/22,361.20
  6. Step 6: Final answer
    x = 16,959.84

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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.