Home / 30,619.05-42,252.94-17,190.04

Finding the Fourth Proportional to 30,619.05, 42,252.94 and 17,190.04

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Solution

The fourth proportional to 30,619.05, 42,252.94 and 17,190.04 is: 23,721.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,619.05 : 42,252.94 = 17,190.04 : x
  2. Step 2: Convert to fraction form
    30,619.05/42,252.94 = 17,190.04/x
  3. Step 3: Cross multiply
    30,619.05x = 42,252.94 × 17,190.04
  4. Step 4: Simplify right side
    30,619.05x = 726,329,728.72
  5. Step 5: Solve for x
    x = 726,329,728.72/30,619.05
  6. Step 6: Final answer
    x = 23,721.50

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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.