Home / 19,940.48-27,516.87-10,986.54

Finding the Fourth Proportional to 19,940.48, 27,516.87 and 10,986.54

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Solution

The fourth proportional to 19,940.48, 27,516.87 and 10,986.54 is: 15,160.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,940.48 : 27,516.87 = 10,986.54 : x
  2. Step 2: Convert to fraction form
    19,940.48/27,516.87 = 10,986.54/x
  3. Step 3: Cross multiply
    19,940.48x = 27,516.87 × 10,986.54
  4. Step 4: Simplify right side
    19,940.48x = 302,315,192.93
  5. Step 5: Solve for x
    x = 302,315,192.93/19,940.48
  6. Step 6: Final answer
    x = 15,160.88

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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.