Home / 39,361.30-54,317.25-21,456.02

Finding the Fourth Proportional to 39,361.30, 54,317.25 and 21,456.02

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Solution

The fourth proportional to 39,361.30, 54,317.25 and 21,456.02 is: 29,608.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,361.30 : 54,317.25 = 21,456.02 : x
  2. Step 2: Convert to fraction form
    39,361.30/54,317.25 = 21,456.02/x
  3. Step 3: Cross multiply
    39,361.30x = 54,317.25 × 21,456.02
  4. Step 4: Simplify right side
    39,361.30x = 1,165,432,002.35
  5. Step 5: Solve for x
    x = 1,165,432,002.35/39,361.30
  6. Step 6: Final answer
    x = 29,608.57

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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.