Home / 39,701.96-54,788.55-21,796.56

Finding the Fourth Proportional to 39,701.96, 54,788.55 and 21,796.56

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Solution

The fourth proportional to 39,701.96, 54,788.55 and 21,796.56 is: 30,079.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,701.96 : 54,788.55 = 21,796.56 : x
  2. Step 2: Convert to fraction form
    39,701.96/54,788.55 = 21,796.56/x
  3. Step 3: Cross multiply
    39,701.96x = 54,788.55 × 21,796.56
  4. Step 4: Simplify right side
    39,701.96x = 1,194,201,917.39
  5. Step 5: Solve for x
    x = 1,194,201,917.39/39,701.96
  6. Step 6: Final answer
    x = 30,079.17

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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.