Home / 39,750.65-54,855.27-21,845.27

Finding the Fourth Proportional to 39,750.65, 54,855.27 and 21,845.27

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Solution

The fourth proportional to 39,750.65, 54,855.27 and 21,845.27 is: 30,146.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,750.65 : 54,855.27 = 21,845.27 : x
  2. Step 2: Convert to fraction form
    39,750.65/54,855.27 = 21,845.27/x
  3. Step 3: Cross multiply
    39,750.65x = 54,855.27 × 21,845.27
  4. Step 4: Simplify right side
    39,750.65x = 1,198,328,321.21
  5. Step 5: Solve for x
    x = 1,198,328,321.21/39,750.65
  6. Step 6: Final answer
    x = 30,146.13

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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.