Finding the Fourth Proportional to 36.42, 54.48 and 21.99
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Solution
The fourth proportional to 36.42, 54.48 and 21.99 is: 32.89
Step by Step Solution
- Step 1: Write the proportion equation
36.42 : 54.48 = 21.99 : x - Step 2: Convert to fraction form
36.42/54.48 = 21.99/x - Step 3: Cross multiply
36.42x = 54.48 × 21.99 - Step 4: Simplify right side
36.42x = 1,198.02 - Step 5: Solve for x
x = 1,198.02/36.42 - Step 6: Final answer
x = 32.89
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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.