Finding the Fourth Proportional to 19,979.49, 27,570.90 and 11,482.99
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Solution
The fourth proportional to 19,979.49, 27,570.90 and 11,482.99 is: 15,846.07
Step by Step Solution
- Step 1: Write the proportion equation
19,979.49 : 27,570.90 = 11,482.99 : x - Step 2: Convert to fraction form
19,979.49/27,570.90 = 11,482.99/x - Step 3: Cross multiply
19,979.49x = 27,570.90 × 11,482.99 - Step 4: Simplify right side
19,979.49x = 316,596,368.99 - Step 5: Solve for x
x = 316,596,368.99/19,979.49 - Step 6: Final answer
x = 15,846.07
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1.5x scale
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.