Home / 22,178.91-30,607.01-12,107.58

Finding the Fourth Proportional to 22,178.91, 30,607.01 and 12,107.58

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Solution

The fourth proportional to 22,178.91, 30,607.01 and 12,107.58 is: 16,708.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,178.91 : 30,607.01 = 12,107.58 : x
  2. Step 2: Convert to fraction form
    22,178.91/30,607.01 = 12,107.58/x
  3. Step 3: Cross multiply
    22,178.91x = 30,607.01 × 12,107.58
  4. Step 4: Simplify right side
    22,178.91x = 370,576,761.60
  5. Step 5: Solve for x
    x = 370,576,761.60/22,178.91
  6. Step 6: Final answer
    x = 16,708.52

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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.