Home / 22,178.97-30,607.04-12,107.42

Finding the Fourth Proportional to 22,178.97, 30,607.04 and 12,107.42

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Solution

The fourth proportional to 22,178.97, 30,607.04 and 12,107.42 is: 16,708.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,178.97 : 30,607.04 = 12,107.42 : x
  2. Step 2: Convert to fraction form
    22,178.97/30,607.04 = 12,107.42/x
  3. Step 3: Cross multiply
    22,178.97x = 30,607.04 × 12,107.42
  4. Step 4: Simplify right side
    22,178.97x = 370,572,395.02
  5. Step 5: Solve for x
    x = 370,572,395.02/22,178.97
  6. Step 6: Final answer
    x = 16,708.28

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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.