Home / 28,753.72-43,149.02-13,954.56

Finding the Fourth Proportional to 28,753.72, 43,149.02 and 13,954.56

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Solution

The fourth proportional to 28,753.72, 43,149.02 and 13,954.56 is: 20,940.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,753.72 : 43,149.02 = 13,954.56 : x
  2. Step 2: Convert to fraction form
    28,753.72/43,149.02 = 13,954.56/x
  3. Step 3: Cross multiply
    28,753.72x = 43,149.02 × 13,954.56
  4. Step 4: Simplify right side
    28,753.72x = 602,125,623.42
  5. Step 5: Solve for x
    x = 602,125,623.42/28,753.72
  6. Step 6: Final answer
    x = 20,940.79

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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.