Home / 19,980.65-27,572.49-11,028.04

Finding the Fourth Proportional to 19,980.65, 27,572.49 and 11,028.04

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Solution

The fourth proportional to 19,980.65, 27,572.49 and 11,028.04 is: 15,218.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,980.65 : 27,572.49 = 11,028.04 : x
  2. Step 2: Convert to fraction form
    19,980.65/27,572.49 = 11,028.04/x
  3. Step 3: Cross multiply
    19,980.65x = 27,572.49 × 11,028.04
  4. Step 4: Simplify right side
    19,980.65x = 304,070,453.69
  5. Step 5: Solve for x
    x = 304,070,453.69/19,980.65
  6. Step 6: Final answer
    x = 15,218.24

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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.