Finding the Fourth Proportional to 28,573.29, 42,866.78 and 11,924.09
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Solution
The fourth proportional to 28,573.29, 42,866.78 and 11,924.09 is: 17,888.99
Step by Step Solution
- Step 1: Write the proportion equation
28,573.29 : 42,866.78 = 11,924.09 : x - Step 2: Convert to fraction form
28,573.29/42,866.78 = 11,924.09/x - Step 3: Cross multiply
28,573.29x = 42,866.78 × 11,924.09 - Step 4: Simplify right side
28,573.29x = 511,147,342.73 - Step 5: Solve for x
x = 511,147,342.73/28,573.29 - Step 6: Final answer
x = 17,888.99
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1.5x scale
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.