Home / 29,198.94-40,312.41-18,999.66

Finding the Fourth Proportional to 29,198.94, 40,312.41 and 18,999.66

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Solution

The fourth proportional to 29,198.94, 40,312.41 and 18,999.66 is: 26,231.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,198.94 : 40,312.41 = 18,999.66 : x
  2. Step 2: Convert to fraction form
    29,198.94/40,312.41 = 18,999.66/x
  3. Step 3: Cross multiply
    29,198.94x = 40,312.41 × 18,999.66
  4. Step 4: Simplify right side
    29,198.94x = 765,922,083.78
  5. Step 5: Solve for x
    x = 765,922,083.78/29,198.94
  6. Step 6: Final answer
    x = 26,231.16

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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.