Home / 29,678.06-40,949.18-18,195.44

Finding the Fourth Proportional to 29,678.06, 40,949.18 and 18,195.44

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Solution

The fourth proportional to 29,678.06, 40,949.18 and 18,195.44 is: 25,105.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,678.06 : 40,949.18 = 18,195.44 : x
  2. Step 2: Convert to fraction form
    29,678.06/40,949.18 = 18,195.44/x
  3. Step 3: Cross multiply
    29,678.06x = 40,949.18 × 18,195.44
  4. Step 4: Simplify right side
    29,678.06x = 745,088,120.25
  5. Step 5: Solve for x
    x = 745,088,120.25/29,678.06
  6. Step 6: Final answer
    x = 25,105.69

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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.