Home / 22,361.86-30,857.34-12,290.17

Finding the Fourth Proportional to 22,361.86, 30,857.34 and 12,290.17

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Solution

The fourth proportional to 22,361.86, 30,857.34 and 12,290.17 is: 16,959.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,361.86 : 30,857.34 = 12,290.17 : x
  2. Step 2: Convert to fraction form
    22,361.86/30,857.34 = 12,290.17/x
  3. Step 3: Cross multiply
    22,361.86x = 30,857.34 × 12,290.17
  4. Step 4: Simplify right side
    22,361.86x = 379,241,954.35
  5. Step 5: Solve for x
    x = 379,241,954.35/22,361.86
  6. Step 6: Final answer
    x = 16,959.32

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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.