Finding the Fourth Proportional to 17.88, 24.68 and 14.99
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Solution
The fourth proportional to 17.88, 24.68 and 14.99 is: 20.68
Step by Step Solution
- Step 1: Write the proportion equation
17.88 : 24.68 = 14.99 : x - Step 2: Convert to fraction form
17.88/24.68 = 14.99/x - Step 3: Cross multiply
17.88x = 24.68 × 14.99 - Step 4: Simplify right side
17.88x = 369.75 - Step 5: Solve for x
x = 369.75/17.88 - Step 6: Final answer
x = 20.68
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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.