Home / 39,727.22-54,823.58-21,822.53

Finding the Fourth Proportional to 39,727.22, 54,823.58 and 21,822.53

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Solution

The fourth proportional to 39,727.22, 54,823.58 and 21,822.53 is: 30,115.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,727.22 : 54,823.58 = 21,822.53 : x
  2. Step 2: Convert to fraction form
    39,727.22/54,823.58 = 21,822.53/x
  3. Step 3: Cross multiply
    39,727.22x = 54,823.58 × 21,822.53
  4. Step 4: Simplify right side
    39,727.22x = 1,196,388,836.03
  5. Step 5: Solve for x
    x = 1,196,388,836.03/39,727.22
  6. Step 6: Final answer
    x = 30,115.09

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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.