Finding the Fourth Proportional to 16,420.32, 24,630.48 and 13,154.00
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Solution
The fourth proportional to 16,420.32, 24,630.48 and 13,154.00 is: 19,730.99
Step by Step Solution
- Step 1: Write the proportion equation
16,420.32 : 24,630.48 = 13,154.00 : x - Step 2: Convert to fraction form
16,420.32/24,630.48 = 13,154.00/x - Step 3: Cross multiply
16,420.32x = 24,630.48 × 13,154.00 - Step 4: Simplify right side
16,420.32x = 323,989,210.77 - Step 5: Solve for x
x = 323,989,210.77/16,420.32 - Step 6: Final answer
x = 19,730.99
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Double scale
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Similar ratio
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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.