Home / 19,980.04-27,571.92-11,027.38

Finding the Fourth Proportional to 19,980.04, 27,571.92 and 11,027.38

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Solution

The fourth proportional to 19,980.04, 27,571.92 and 11,027.38 is: 15,217.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,980.04 : 27,571.92 = 11,027.38 : x
  2. Step 2: Convert to fraction form
    19,980.04/27,571.92 = 11,027.38/x
  3. Step 3: Cross multiply
    19,980.04x = 27,571.92 × 11,027.38
  4. Step 4: Simplify right side
    19,980.04x = 304,046,039.17
  5. Step 5: Solve for x
    x = 304,046,039.17/19,980.04
  6. Step 6: Final answer
    x = 15,217.49

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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.