Home / 37,181.20-51,309.84-20,185.78

Finding the Fourth Proportional to 37,181.20, 51,309.84 and 20,185.78

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Solution

The fourth proportional to 37,181.20, 51,309.84 and 20,185.78 is: 27,856.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,181.20 : 51,309.84 = 20,185.78 : x
  2. Step 2: Convert to fraction form
    37,181.20/51,309.84 = 20,185.78/x
  3. Step 3: Cross multiply
    37,181.20x = 51,309.84 × 20,185.78
  4. Step 4: Simplify right side
    37,181.20x = 1,035,729,142.08
  5. Step 5: Solve for x
    x = 1,035,729,142.08/37,181.20
  6. Step 6: Final answer
    x = 27,856.26

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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.