Home / 30,991.84-46,372.92-18,518.66

Finding the Fourth Proportional to 30,991.84, 46,372.92 and 18,518.66

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Solution

The fourth proportional to 30,991.84, 46,372.92 and 18,518.66 is: 27,709.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,991.84 : 46,372.92 = 18,518.66 : x
  2. Step 2: Convert to fraction form
    30,991.84/46,372.92 = 18,518.66/x
  3. Step 3: Cross multiply
    30,991.84x = 46,372.92 × 18,518.66
  4. Step 4: Simplify right side
    30,991.84x = 858,764,338.69
  5. Step 5: Solve for x
    x = 858,764,338.69/30,991.84
  6. Step 6: Final answer
    x = 27,709.37

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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.