Home / 30,982.05-42,754.70-16,834.79

Finding the Fourth Proportional to 30,982.05, 42,754.70 and 16,834.79

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Solution

The fourth proportional to 30,982.05, 42,754.70 and 16,834.79 is: 23,231.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,982.05 : 42,754.70 = 16,834.79 : x
  2. Step 2: Convert to fraction form
    30,982.05/42,754.70 = 16,834.79/x
  3. Step 3: Cross multiply
    30,982.05x = 42,754.70 × 16,834.79
  4. Step 4: Simplify right side
    30,982.05x = 719,766,544.99
  5. Step 5: Solve for x
    x = 719,766,544.99/30,982.05
  6. Step 6: Final answer
    x = 23,231.73

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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.