Finding the Fourth Proportional to 22.24, 30.72 and 19.54
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Solution
The fourth proportional to 22.24, 30.72 and 19.54 is: 26.99
Step by Step Solution
- Step 1: Write the proportion equation
22.24 : 30.72 = 19.54 : x - Step 2: Convert to fraction form
22.24/30.72 = 19.54/x - Step 3: Cross multiply
22.24x = 30.72 × 19.54 - Step 4: Simplify right side
22.24x = 600.27 - Step 5: Solve for x
x = 600.27/22.24 - Step 6: Final answer
x = 26.99
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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.