Home / 30,940.50-42,694.34-17,326.64

Finding the Fourth Proportional to 30,940.50, 42,694.34 and 17,326.64

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Solution

The fourth proportional to 30,940.50, 42,694.34 and 17,326.64 is: 23,908.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,940.50 : 42,694.34 = 17,326.64 : x
  2. Step 2: Convert to fraction form
    30,940.50/42,694.34 = 17,326.64/x
  3. Step 3: Cross multiply
    30,940.50x = 42,694.34 × 17,326.64
  4. Step 4: Simplify right side
    30,940.50x = 739,749,576.78
  5. Step 5: Solve for x
    x = 739,749,576.78/30,940.50
  6. Step 6: Final answer
    x = 23,908.78

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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.