Finding the Fourth Proportional to 29,202.90, 40,299.99 and 15,774.15
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Solution
The fourth proportional to 29,202.90, 40,299.99 and 15,774.15 is: 21,768.32
Step by Step Solution
- Step 1: Write the proportion equation
29,202.90 : 40,299.99 = 15,774.15 : x - Step 2: Convert to fraction form
29,202.90/40,299.99 = 15,774.15/x - Step 3: Cross multiply
29,202.90x = 40,299.99 × 15,774.15 - Step 4: Simplify right side
29,202.90x = 635,698,087.26 - Step 5: Solve for x
x = 635,698,087.26/29,202.90 - Step 6: Final answer
x = 21,768.32
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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.