Finding the Fourth Proportional to 47.21, 65.14 and 27.53
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Solution
The fourth proportional to 47.21, 65.14 and 27.53 is: 37.99
Step by Step Solution
- Step 1: Write the proportion equation
47.21 : 65.14 = 27.53 : x - Step 2: Convert to fraction form
47.21/65.14 = 27.53/x - Step 3: Cross multiply
47.21x = 65.14 × 27.53 - Step 4: Simplify right side
47.21x = 1,793.30 - Step 5: Solve for x
x = 1,793.30/47.21 - Step 6: Final answer
x = 37.99
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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.