Home / 43,912.56-65,821.60-18,964.34

Finding the Fourth Proportional to 43,912.56, 65,821.60 and 18,964.34

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Solution

The fourth proportional to 43,912.56, 65,821.60 and 18,964.34 is: 28,426.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,912.56 : 65,821.60 = 18,964.34 : x
  2. Step 2: Convert to fraction form
    43,912.56/65,821.60 = 18,964.34/x
  3. Step 3: Cross multiply
    43,912.56x = 65,821.60 × 18,964.34
  4. Step 4: Simplify right side
    43,912.56x = 1,248,263,201.74
  5. Step 5: Solve for x
    x = 1,248,263,201.74/43,912.56
  6. Step 6: Final answer
    x = 28,426.11

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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.