Finding the Fourth Proportional to 18,140.23, 27,000.68 and 17,731.99
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Solution
The fourth proportional to 18,140.23, 27,000.68 and 17,731.99 is: 26,393.04
Step by Step Solution
- Step 1: Write the proportion equation
18,140.23 : 27,000.68 = 17,731.99 : x - Step 2: Convert to fraction form
18,140.23/27,000.68 = 17,731.99/x - Step 3: Cross multiply
18,140.23x = 27,000.68 × 17,731.99 - Step 4: Simplify right side
18,140.23x = 478,775,787.75 - Step 5: Solve for x
x = 478,775,787.75/18,140.23 - Step 6: Final answer
x = 26,393.04
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Why These Related Problems?
These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.