Home / 19,940.36-27,516.70-10,986.42

Finding the Fourth Proportional to 19,940.36, 27,516.70 and 10,986.42

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Solution

The fourth proportional to 19,940.36, 27,516.70 and 10,986.42 is: 15,160.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,940.36 : 27,516.70 = 10,986.42 : x
  2. Step 2: Convert to fraction form
    19,940.36/27,516.70 = 10,986.42/x
  3. Step 3: Cross multiply
    19,940.36x = 27,516.70 × 10,986.42
  4. Step 4: Simplify right side
    19,940.36x = 302,310,023.21
  5. Step 5: Solve for x
    x = 302,310,023.21/19,940.36
  6. Step 6: Final answer
    x = 15,160.71

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1.5x scale

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.