Home / 30,288.20-41,789.32-18,185.54

Finding the Fourth Proportional to 30,288.20, 41,789.32 and 18,185.54

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Solution

The fourth proportional to 30,288.20, 41,789.32 and 18,185.54 is: 25,091.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,288.20 : 41,789.32 = 18,185.54 : x
  2. Step 2: Convert to fraction form
    30,288.20/41,789.32 = 18,185.54/x
  3. Step 3: Cross multiply
    30,288.20x = 41,789.32 × 18,185.54
  4. Step 4: Simplify right side
    30,288.20x = 759,961,350.43
  5. Step 5: Solve for x
    x = 759,961,350.43/30,288.20
  6. Step 6: Final answer
    x = 25,091.00

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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.