Home / 28,438.41-39,238.99-16,500.23

Finding the Fourth Proportional to 28,438.41, 39,238.99 and 16,500.23

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Solution

The fourth proportional to 28,438.41, 39,238.99 and 16,500.23 is: 22,766.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,438.41 : 39,238.99 = 16,500.23 : x
  2. Step 2: Convert to fraction form
    28,438.41/39,238.99 = 16,500.23/x
  3. Step 3: Cross multiply
    28,438.41x = 39,238.99 × 16,500.23
  4. Step 4: Simplify right side
    28,438.41x = 647,452,359.97
  5. Step 5: Solve for x
    x = 647,452,359.97/28,438.41
  6. Step 6: Final answer
    x = 22,766.83

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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.