Home / 28,958.24-39,958.99-16,212.12

Finding the Fourth Proportional to 28,958.24, 39,958.99 and 16,212.12

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Solution

The fourth proportional to 28,958.24, 39,958.99 and 16,212.12 is: 22,370.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,958.24 : 39,958.99 = 16,212.12 : x
  2. Step 2: Convert to fraction form
    28,958.24/39,958.99 = 16,212.12/x
  3. Step 3: Cross multiply
    28,958.24x = 39,958.99 × 16,212.12
  4. Step 4: Simplify right side
    28,958.24x = 647,819,940.96
  5. Step 5: Solve for x
    x = 647,819,940.96/28,958.24
  6. Step 6: Final answer
    x = 22,370.83

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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.