Finding the Fourth Proportional to 30,762.24, 42,451.86 and 16,615.08
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Solution
The fourth proportional to 30,762.24, 42,451.86 and 16,615.08 is: 22,928.79
Step by Step Solution
- Step 1: Write the proportion equation
30,762.24 : 42,451.86 = 16,615.08 : x - Step 2: Convert to fraction form
30,762.24/42,451.86 = 16,615.08/x - Step 3: Cross multiply
30,762.24x = 42,451.86 × 16,615.08 - Step 4: Simplify right side
30,762.24x = 705,341,050.05 - Step 5: Solve for x
x = 705,341,050.05/30,762.24 - Step 6: Final answer
x = 22,928.79
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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.