Home / 39,577.31-54,617.92-21,674.01

Finding the Fourth Proportional to 39,577.31, 54,617.92 and 21,674.01

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Solution

The fourth proportional to 39,577.31, 54,617.92 and 21,674.01 is: 29,910.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,577.31 : 54,617.92 = 21,674.01 : x
  2. Step 2: Convert to fraction form
    39,577.31/54,617.92 = 21,674.01/x
  3. Step 3: Cross multiply
    39,577.31x = 54,617.92 × 21,674.01
  4. Step 4: Simplify right side
    39,577.31x = 1,183,789,344.26
  5. Step 5: Solve for x
    x = 1,183,789,344.26/39,577.31
  6. Step 6: Final answer
    x = 29,910.81

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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.