Home / 19,640.33-27,091.42-11,980.10

Finding the Fourth Proportional to 19,640.33, 27,091.42 and 11,980.10

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Solution

The fourth proportional to 19,640.33, 27,091.42 and 11,980.10 is: 16,525.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,640.33 : 27,091.42 = 11,980.10 : x
  2. Step 2: Convert to fraction form
    19,640.33/27,091.42 = 11,980.10/x
  3. Step 3: Cross multiply
    19,640.33x = 27,091.42 × 11,980.10
  4. Step 4: Simplify right side
    19,640.33x = 324,558,028.76
  5. Step 5: Solve for x
    x = 324,558,028.76/19,640.33
  6. Step 6: Final answer
    x = 16,525.08

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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.