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Finding the Fourth Proportional to 33,389.52, 46,081.22 and 21,290.45

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Solution

The fourth proportional to 33,389.52, 46,081.22 and 21,290.45 is: 29,383.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,389.52 : 46,081.22 = 21,290.45 : x
  2. Step 2: Convert to fraction form
    33,389.52/46,081.22 = 21,290.45/x
  3. Step 3: Cross multiply
    33,389.52x = 46,081.22 × 21,290.45
  4. Step 4: Simplify right side
    33,389.52x = 981,089,573.49
  5. Step 5: Solve for x
    x = 981,089,573.49/33,389.52
  6. Step 6: Final answer
    x = 29,383.16

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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.