Finding the Fourth Proportional to 19.08, 28.73 and 17.99
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Solution
The fourth proportional to 19.08, 28.73 and 17.99 is: 27.08
Step by Step Solution
- Step 1: Write the proportion equation
19.08 : 28.73 = 17.99 : x - Step 2: Convert to fraction form
19.08/28.73 = 17.99/x - Step 3: Cross multiply
19.08x = 28.73 × 17.99 - Step 4: Simplify right side
19.08x = 516.75 - Step 5: Solve for x
x = 516.75/19.08 - Step 6: Final answer
x = 27.08
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Why These Related Problems?
These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.