Home / 28,940.45-39,942.95-17,003.79

Finding the Fourth Proportional to 28,940.45, 39,942.95 and 17,003.79

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Solution

The fourth proportional to 28,940.45, 39,942.95 and 17,003.79 is: 23,468.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,940.45 : 39,942.95 = 17,003.79 : x
  2. Step 2: Convert to fraction form
    28,940.45/39,942.95 = 17,003.79/x
  3. Step 3: Cross multiply
    28,940.45x = 39,942.95 × 17,003.79
  4. Step 4: Simplify right side
    28,940.45x = 679,181,391.41
  5. Step 5: Solve for x
    x = 679,181,391.41/28,940.45
  6. Step 6: Final answer
    x = 23,468.24

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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.