Home / 30,619.56-42,253.62-17,190.54

Finding the Fourth Proportional to 30,619.56, 42,253.62 and 17,190.54

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Solution

The fourth proportional to 30,619.56, 42,253.62 and 17,190.54 is: 23,722.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,619.56 : 42,253.62 = 17,190.54 : x
  2. Step 2: Convert to fraction form
    30,619.56/42,253.62 = 17,190.54/x
  3. Step 3: Cross multiply
    30,619.56x = 42,253.62 × 17,190.54
  4. Step 4: Simplify right side
    30,619.56x = 726,362,544.75
  5. Step 5: Solve for x
    x = 726,362,544.75/30,619.56
  6. Step 6: Final answer
    x = 23,722.17

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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.