Home / 28,974.24-43,470.72-13,402.08

Finding the Fourth Proportional to 28,974.24, 43,470.72 and 13,402.08

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Solution

The fourth proportional to 28,974.24, 43,470.72 and 13,402.08 is: 20,107.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,974.24 : 43,470.72 = 13,402.08 : x
  2. Step 2: Convert to fraction form
    28,974.24/43,470.72 = 13,402.08/x
  3. Step 3: Cross multiply
    28,974.24x = 43,470.72 × 13,402.08
  4. Step 4: Simplify right side
    28,974.24x = 582,598,067.10
  5. Step 5: Solve for x
    x = 582,598,067.10/28,974.24
  6. Step 6: Final answer
    x = 20,107.45

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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.