Home / 30,960.65-42,721.97-17,349.41

Finding the Fourth Proportional to 30,960.65, 42,721.97 and 17,349.41

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Solution

The fourth proportional to 30,960.65, 42,721.97 and 17,349.41 is: 23,940.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,960.65 : 42,721.97 = 17,349.41 : x
  2. Step 2: Convert to fraction form
    30,960.65/42,721.97 = 17,349.41/x
  3. Step 3: Cross multiply
    30,960.65x = 42,721.97 × 17,349.41
  4. Step 4: Simplify right side
    30,960.65x = 741,200,993.60
  5. Step 5: Solve for x
    x = 741,200,993.60/30,960.65
  6. Step 6: Final answer
    x = 23,940.10

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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.