Home / 30,735.20-45,986.48-18,261.92

Finding the Fourth Proportional to 30,735.20, 45,986.48 and 18,261.92

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Solution

The fourth proportional to 30,735.20, 45,986.48 and 18,261.92 is: 27,323.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,735.20 : 45,986.48 = 18,261.92 : x
  2. Step 2: Convert to fraction form
    30,735.20/45,986.48 = 18,261.92/x
  3. Step 3: Cross multiply
    30,735.20x = 45,986.48 × 18,261.92
  4. Step 4: Simplify right side
    30,735.20x = 839,801,418.84
  5. Step 5: Solve for x
    x = 839,801,418.84/30,735.20
  6. Step 6: Final answer
    x = 27,323.77

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.