Home / 19,196.65-28,729.95-11,805.79

Finding the Fourth Proportional to 19,196.65, 28,729.95 and 11,805.79

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Solution

The fourth proportional to 19,196.65, 28,729.95 and 11,805.79 is: 17,668.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,196.65 : 28,729.95 = 11,805.79 : x
  2. Step 2: Convert to fraction form
    19,196.65/28,729.95 = 11,805.79/x
  3. Step 3: Cross multiply
    19,196.65x = 28,729.95 × 11,805.79
  4. Step 4: Simplify right side
    19,196.65x = 339,179,756.41
  5. Step 5: Solve for x
    x = 339,179,756.41/19,196.65
  6. Step 6: Final answer
    x = 17,668.70

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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.