Finding the Fourth Proportional to 29.99, 44.99 and 9.70
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Solution
The fourth proportional to 29.99, 44.99 and 9.70 is: 14.55
Step by Step Solution
- Step 1: Write the proportion equation
29.99 : 44.99 = 9.70 : x - Step 2: Convert to fraction form
29.99/44.99 = 9.70/x - Step 3: Cross multiply
29.99x = 44.99 × 9.70 - Step 4: Simplify right side
29.99x = 436.40 - Step 5: Solve for x
x = 436.40/29.99 - Step 6: Final answer
x = 14.55
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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.