Home / 30,998.87-42,777.54-17,571.36

Finding the Fourth Proportional to 30,998.87, 42,777.54 and 17,571.36

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Solution

The fourth proportional to 30,998.87, 42,777.54 and 17,571.36 is: 24,247.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,998.87 : 42,777.54 = 17,571.36 : x
  2. Step 2: Convert to fraction form
    30,998.87/42,777.54 = 17,571.36/x
  3. Step 3: Cross multiply
    30,998.87x = 42,777.54 × 17,571.36
  4. Step 4: Simplify right side
    30,998.87x = 751,659,555.25
  5. Step 5: Solve for x
    x = 751,659,555.25/30,998.87
  6. Step 6: Final answer
    x = 24,247.97

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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.