Finding the Fourth Proportional to 19,828.12, 27,362.33 and 10,875.54
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Solution
The fourth proportional to 19,828.12, 27,362.33 and 10,875.54 is: 15,007.99
Step by Step Solution
- Step 1: Write the proportion equation
19,828.12 : 27,362.33 = 10,875.54 : x - Step 2: Convert to fraction form
19,828.12/27,362.33 = 10,875.54/x - Step 3: Cross multiply
19,828.12x = 27,362.33 × 10,875.54 - Step 4: Simplify right side
19,828.12x = 297,580,157.05 - Step 5: Solve for x
x = 297,580,157.05/19,828.12 - Step 6: Final answer
x = 15,007.99
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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.