Home / 43,664.06-65,441.31-18,674.78

Finding the Fourth Proportional to 43,664.06, 65,441.31 and 18,674.78

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Solution

The fourth proportional to 43,664.06, 65,441.31 and 18,674.78 is: 27,988.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,664.06 : 65,441.31 = 18,674.78 : x
  2. Step 2: Convert to fraction form
    43,664.06/65,441.31 = 18,674.78/x
  3. Step 3: Cross multiply
    43,664.06x = 65,441.31 × 18,674.78
  4. Step 4: Simplify right side
    43,664.06x = 1,222,101,739.96
  5. Step 5: Solve for x
    x = 1,222,101,739.96/43,664.06
  6. Step 6: Final answer
    x = 27,988.74

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.