Home / 28,782.74-43,141.31-13,167.56

Finding the Fourth Proportional to 28,782.74, 43,141.31 and 13,167.56

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Solution

The fourth proportional to 28,782.74, 43,141.31 and 13,167.56 is: 19,736.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,782.74 : 43,141.31 = 13,167.56 : x
  2. Step 2: Convert to fraction form
    28,782.74/43,141.31 = 13,167.56/x
  3. Step 3: Cross multiply
    28,782.74x = 43,141.31 × 13,167.56
  4. Step 4: Simplify right side
    28,782.74x = 568,065,879.30
  5. Step 5: Solve for x
    x = 568,065,879.30/28,782.74
  6. Step 6: Final answer
    x = 19,736.34

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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.