Home / 22,447.05-30,977.13-12,375.84

Finding the Fourth Proportional to 22,447.05, 30,977.13 and 12,375.84

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Solution

The fourth proportional to 22,447.05, 30,977.13 and 12,375.84 is: 17,078.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,447.05 : 30,977.13 = 12,375.84 : x
  2. Step 2: Convert to fraction form
    22,447.05/30,977.13 = 12,375.84/x
  3. Step 3: Cross multiply
    22,447.05x = 30,977.13 × 12,375.84
  4. Step 4: Simplify right side
    22,447.05x = 383,368,004.54
  5. Step 5: Solve for x
    x = 383,368,004.54/22,447.05
  6. Step 6: Final answer
    x = 17,078.77

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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.