Home / 19,940.10-27,516.35-10,986.17

Finding the Fourth Proportional to 19,940.10, 27,516.35 and 10,986.17

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Solution

The fourth proportional to 19,940.10, 27,516.35 and 10,986.17 is: 15,160.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,940.10 : 27,516.35 = 10,986.17 : x
  2. Step 2: Convert to fraction form
    19,940.10/27,516.35 = 10,986.17/x
  3. Step 3: Cross multiply
    19,940.10x = 27,516.35 × 10,986.17
  4. Step 4: Simplify right side
    19,940.10x = 302,299,106.37
  5. Step 5: Solve for x
    x = 302,299,106.37/19,940.10
  6. Step 6: Final answer
    x = 15,160.36

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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.