Home / 19,740.97-29,631.97-11,437.21

Finding the Fourth Proportional to 19,740.97, 29,631.97 and 11,437.21

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Solution

The fourth proportional to 19,740.97, 29,631.97 and 11,437.21 is: 17,167.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,740.97 : 29,631.97 = 11,437.21 : x
  2. Step 2: Convert to fraction form
    19,740.97/29,631.97 = 11,437.21/x
  3. Step 3: Cross multiply
    19,740.97x = 29,631.97 × 11,437.21
  4. Step 4: Simplify right side
    19,740.97x = 338,907,109.09
  5. Step 5: Solve for x
    x = 338,907,109.09/19,740.97
  6. Step 6: Final answer
    x = 17,167.70

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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.