Finding the Fourth Proportional to 17.21, 25.80 and 14.93
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Solution
The fourth proportional to 17.21, 25.80 and 14.93 is: 22.38
Step by Step Solution
- Step 1: Write the proportion equation
17.21 : 25.80 = 14.93 : x - Step 2: Convert to fraction form
17.21/25.80 = 14.93/x - Step 3: Cross multiply
17.21x = 25.80 × 14.93 - Step 4: Simplify right side
17.21x = 385.19 - Step 5: Solve for x
x = 385.19/17.21 - Step 6: Final answer
x = 22.38
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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.