Finding the Fourth Proportional to 19,992, 29,985.86 and 10,622.09
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Solution
The fourth proportional to 19,992, 29,985.86 and 10,622.09 is: 15,931.99
Step by Step Solution
- Step 1: Write the proportion equation
19,992 : 29,985.86 = 10,622.09 : x - Step 2: Convert to fraction form
19,992/29,985.86 = 10,622.09/x - Step 3: Cross multiply
19,992x = 29,985.86 × 10,622.09 - Step 4: Simplify right side
19,992x = 318,512,300.61 - Step 5: Solve for x
x = 318,512,300.61/19,992 - Step 6: Final answer
x = 15,931.99
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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.