Finding the Fourth Proportional to 28.30, 42.36 and 23.99
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Solution
The fourth proportional to 28.30, 42.36 and 23.99 is: 35.92
Step by Step Solution
- Step 1: Write the proportion equation
28.30 : 42.36 = 23.99 : x - Step 2: Convert to fraction form
28.30/42.36 = 23.99/x - Step 3: Cross multiply
28.30x = 42.36 × 23.99 - Step 4: Simplify right side
28.30x = 1,016.22 - Step 5: Solve for x
x = 1,016.22/28.30 - Step 6: Final answer
x = 35.92
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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.