Home / 43,215.28-64,833.12-16,912.96

Finding the Fourth Proportional to 43,215.28, 64,833.12 and 16,912.96

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Solution

The fourth proportional to 43,215.28, 64,833.12 and 16,912.96 is: 25,373.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,215.28 : 64,833.12 = 16,912.96 : x
  2. Step 2: Convert to fraction form
    43,215.28/64,833.12 = 16,912.96/x
  3. Step 3: Cross multiply
    43,215.28x = 64,833.12 × 16,912.96
  4. Step 4: Simplify right side
    43,215.28x = 1,096,519,965.24
  5. Step 5: Solve for x
    x = 1,096,519,965.24/43,215.28
  6. Step 6: Final answer
    x = 25,373.43

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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.