Home / 18,905.24-28,361.96-5,757.27

Finding the Fourth Proportional to 18,905.24, 28,361.96 and 5,757.27

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Solution

The fourth proportional to 18,905.24, 28,361.96 and 5,757.27 is: 8,637.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,905.24 : 28,361.96 = 5,757.27 : x
  2. Step 2: Convert to fraction form
    18,905.24/28,361.96 = 5,757.27/x
  3. Step 3: Cross multiply
    18,905.24x = 28,361.96 × 5,757.27
  4. Step 4: Simplify right side
    18,905.24x = 163,287,461.45
  5. Step 5: Solve for x
    x = 163,287,461.45/18,905.24
  6. Step 6: Final answer
    x = 8,637.15

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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.