Home / 28,908.89-43,372.07-13,723.11

Finding the Fourth Proportional to 28,908.89, 43,372.07 and 13,723.11

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Solution

The fourth proportional to 28,908.89, 43,372.07 and 13,723.11 is: 20,588.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,908.89 : 43,372.07 = 13,723.11 : x
  2. Step 2: Convert to fraction form
    28,908.89/43,372.07 = 13,723.11/x
  3. Step 3: Cross multiply
    28,908.89x = 43,372.07 × 13,723.11
  4. Step 4: Simplify right side
    28,908.89x = 595,199,687.54
  5. Step 5: Solve for x
    x = 595,199,687.54/28,908.89
  6. Step 6: Final answer
    x = 20,588.81

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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.