Home / 27,986.51-41,945.74-13,178.09

Finding the Fourth Proportional to 27,986.51, 41,945.74 and 13,178.09

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Solution

The fourth proportional to 27,986.51, 41,945.74 and 13,178.09 is: 19,751.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,986.51 : 41,945.74 = 13,178.09 : x
  2. Step 2: Convert to fraction form
    27,986.51/41,945.74 = 13,178.09/x
  3. Step 3: Cross multiply
    27,986.51x = 41,945.74 × 13,178.09
  4. Step 4: Simplify right side
    27,986.51x = 552,764,494.16
  5. Step 5: Solve for x
    x = 552,764,494.16/27,986.51
  6. Step 6: Final answer
    x = 19,751.11

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.