Home / 19,945.31-29,917.97-11,625.29

Finding the Fourth Proportional to 19,945.31, 29,917.97 and 11,625.29

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Solution

The fourth proportional to 19,945.31, 29,917.97 and 11,625.29 is: 17,437.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,945.31 : 29,917.97 = 11,625.29 : x
  2. Step 2: Convert to fraction form
    19,945.31/29,917.97 = 11,625.29/x
  3. Step 3: Cross multiply
    19,945.31x = 29,917.97 × 11,625.29
  4. Step 4: Simplify right side
    19,945.31x = 347,805,094.13
  5. Step 5: Solve for x
    x = 347,805,094.13/19,945.31
  6. Step 6: Final answer
    x = 17,437.94

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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.