Home / 30,617.21-42,249.46-17,190.52

Finding the Fourth Proportional to 30,617.21, 42,249.46 and 17,190.52

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Solution

The fourth proportional to 30,617.21, 42,249.46 and 17,190.52 is: 23,721.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,617.21 : 42,249.46 = 17,190.52 : x
  2. Step 2: Convert to fraction form
    30,617.21/42,249.46 = 17,190.52/x
  3. Step 3: Cross multiply
    30,617.21x = 42,249.46 × 17,190.52
  4. Step 4: Simplify right side
    30,617.21x = 726,290,187.12
  5. Step 5: Solve for x
    x = 726,290,187.12/30,617.21
  6. Step 6: Final answer
    x = 23,721.63

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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.