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Finding the Fourth Proportional to 29,090.25, 40,144.55 and 15,842.25

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Solution

The fourth proportional to 29,090.25, 40,144.55 and 15,842.25 is: 21,862.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,090.25 : 40,144.55 = 15,842.25 : x
  2. Step 2: Convert to fraction form
    29,090.25/40,144.55 = 15,842.25/x
  3. Step 3: Cross multiply
    29,090.25x = 40,144.55 × 15,842.25
  4. Step 4: Simplify right side
    29,090.25x = 635,979,918.03
  5. Step 5: Solve for x
    x = 635,979,918.03/29,090.25
  6. Step 6: Final answer
    x = 21,862.31

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.