Home / 22,349.64-30,840.84-12,278.04

Finding the Fourth Proportional to 22,349.64, 30,840.84 and 12,278.04

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Solution

The fourth proportional to 22,349.64, 30,840.84 and 12,278.04 is: 16,942.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,349.64 : 30,840.84 = 12,278.04 : x
  2. Step 2: Convert to fraction form
    22,349.64/30,840.84 = 12,278.04/x
  3. Step 3: Cross multiply
    22,349.64x = 30,840.84 × 12,278.04
  4. Step 4: Simplify right side
    22,349.64x = 378,665,067.15
  5. Step 5: Solve for x
    x = 378,665,067.15/22,349.64
  6. Step 6: Final answer
    x = 16,942.78

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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.