Home / 39,361.80-54,317.94-21,456.52

Finding the Fourth Proportional to 39,361.80, 54,317.94 and 21,456.52

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Solution

The fourth proportional to 39,361.80, 54,317.94 and 21,456.52 is: 29,609.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,361.80 : 54,317.94 = 21,456.52 : x
  2. Step 2: Convert to fraction form
    39,361.80/54,317.94 = 21,456.52/x
  3. Step 3: Cross multiply
    39,361.80x = 54,317.94 × 21,456.52
  4. Step 4: Simplify right side
    39,361.80x = 1,165,473,965.97
  5. Step 5: Solve for x
    x = 1,165,473,965.97/39,361.80
  6. Step 6: Final answer
    x = 29,609.26

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1.5x scale

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.