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Finding the Fourth Proportional to 30,200.44, 41,696.32 and 19,620.22

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Solution

The fourth proportional to 30,200.44, 41,696.32 and 19,620.22 is: 27,088.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,200.44 : 41,696.32 = 19,620.22 : x
  2. Step 2: Convert to fraction form
    30,200.44/41,696.32 = 19,620.22/x
  3. Step 3: Cross multiply
    30,200.44x = 41,696.32 × 19,620.22
  4. Step 4: Simplify right side
    30,200.44x = 818,090,971.59
  5. Step 5: Solve for x
    x = 818,090,971.59/30,200.44
  6. Step 6: Final answer
    x = 27,088.71

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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.