Home / 39,408.96-54,383.52-21,504.48

Finding the Fourth Proportional to 39,408.96, 54,383.52 and 21,504.48

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Solution

The fourth proportional to 39,408.96, 54,383.52 and 21,504.48 is: 29,675.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,408.96 : 54,383.52 = 21,504.48 : x
  2. Step 2: Convert to fraction form
    39,408.96/54,383.52 = 21,504.48/x
  3. Step 3: Cross multiply
    39,408.96x = 54,383.52 × 21,504.48
  4. Step 4: Simplify right side
    39,408.96x = 1,169,489,318.17
  5. Step 5: Solve for x
    x = 1,169,489,318.17/39,408.96
  6. Step 6: Final answer
    x = 29,675.72

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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.