Home / 19,668.42-27,128.52-11,704.50

Finding the Fourth Proportional to 19,668.42, 27,128.52 and 11,704.50

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Solution

The fourth proportional to 19,668.42, 27,128.52 and 11,704.50 is: 16,143.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,668.42 : 27,128.52 = 11,704.50 : x
  2. Step 2: Convert to fraction form
    19,668.42/27,128.52 = 11,704.50/x
  3. Step 3: Cross multiply
    19,668.42x = 27,128.52 × 11,704.50
  4. Step 4: Simplify right side
    19,668.42x = 317,525,762.34
  5. Step 5: Solve for x
    x = 317,525,762.34/19,668.42
  6. Step 6: Final answer
    x = 16,143.94

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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.