Home / 16,816.79-23,039.11-16,186.20

Finding the Fourth Proportional to 16,816.79, 23,039.11 and 16,186.20

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Solution

The fourth proportional to 16,816.79, 23,039.11 and 16,186.20 is: 22,175.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,816.79 : 23,039.11 = 16,186.20 : x
  2. Step 2: Convert to fraction form
    16,816.79/23,039.11 = 16,186.20/x
  3. Step 3: Cross multiply
    16,816.79x = 23,039.11 × 16,186.20
  4. Step 4: Simplify right side
    16,816.79x = 372,915,827.42
  5. Step 5: Solve for x
    x = 372,915,827.42/16,816.79
  6. Step 6: Final answer
    x = 22,175.21

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.