Home / 30,200.49-41,678.08-16,771.81

Finding the Fourth Proportional to 30,200.49, 41,678.08 and 16,771.81

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Solution

The fourth proportional to 30,200.49, 41,678.08 and 16,771.81 is: 23,145.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,200.49 : 41,678.08 = 16,771.81 : x
  2. Step 2: Convert to fraction form
    30,200.49/41,678.08 = 16,771.81/x
  3. Step 3: Cross multiply
    30,200.49x = 41,678.08 × 16,771.81
  4. Step 4: Simplify right side
    30,200.49x = 699,016,650.87
  5. Step 5: Solve for x
    x = 699,016,650.87/30,200.49
  6. Step 6: Final answer
    x = 23,145.87

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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.