Finding the Fourth Proportional to 27,615.24, 38,110.11 and 15,679.70
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Solution
The fourth proportional to 27,615.24, 38,110.11 and 15,679.70 is: 21,638.59
Step by Step Solution
- Step 1: Write the proportion equation
27,615.24 : 38,110.11 = 15,679.70 : x - Step 2: Convert to fraction form
27,615.24/38,110.11 = 15,679.70/x - Step 3: Cross multiply
27,615.24x = 38,110.11 × 15,679.70 - Step 4: Simplify right side
27,615.24x = 597,554,901.22 - Step 5: Solve for x
x = 597,554,901.22/27,615.24 - Step 6: Final answer
x = 21,638.59
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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.