Home / 39,456.89-54,449.62-21,551.96

Finding the Fourth Proportional to 39,456.89, 54,449.62 and 21,551.96

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Solution

The fourth proportional to 39,456.89, 54,449.62 and 21,551.96 is: 29,741.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,456.89 : 54,449.62 = 21,551.96 : x
  2. Step 2: Convert to fraction form
    39,456.89/54,449.62 = 21,551.96/x
  3. Step 3: Cross multiply
    39,456.89x = 54,449.62 × 21,551.96
  4. Step 4: Simplify right side
    39,456.89x = 1,173,496,032.26
  5. Step 5: Solve for x
    x = 1,173,496,032.26/39,456.89
  6. Step 6: Final answer
    x = 29,741.22

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Why These Related Problems?

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