Home / 28,965.28-43,447.46-9,243.72

Finding the Fourth Proportional to 28,965.28, 43,447.46 and 9,243.72

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Solution

The fourth proportional to 28,965.28, 43,447.46 and 9,243.72 is: 13,865.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,965.28 : 43,447.46 = 9,243.72 : x
  2. Step 2: Convert to fraction form
    28,965.28/43,447.46 = 9,243.72/x
  3. Step 3: Cross multiply
    28,965.28x = 43,447.46 × 9,243.72
  4. Step 4: Simplify right side
    28,965.28x = 401,616,154.95
  5. Step 5: Solve for x
    x = 401,616,154.95/28,965.28
  6. Step 6: Final answer
    x = 13,865.43

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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.