Home / 28,812.42-39,760.99-16,715.35

Finding the Fourth Proportional to 28,812.42, 39,760.99 and 16,715.35

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Solution

The fourth proportional to 28,812.42, 39,760.99 and 16,715.35 is: 23,067.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,812.42 : 39,760.99 = 16,715.35 : x
  2. Step 2: Convert to fraction form
    28,812.42/39,760.99 = 16,715.35/x
  3. Step 3: Cross multiply
    28,812.42x = 39,760.99 × 16,715.35
  4. Step 4: Simplify right side
    28,812.42x = 664,618,648.45
  5. Step 5: Solve for x
    x = 664,618,648.45/28,812.42
  6. Step 6: Final answer
    x = 23,067.09

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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.