Home / 30,198.80-41,667.63-18,261.89

Finding the Fourth Proportional to 30,198.80, 41,667.63 and 18,261.89

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Solution

The fourth proportional to 30,198.80, 41,667.63 and 18,261.89 is: 25,197.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,198.80 : 41,667.63 = 18,261.89 : x
  2. Step 2: Convert to fraction form
    30,198.80/41,667.63 = 18,261.89/x
  3. Step 3: Cross multiply
    30,198.80x = 41,667.63 × 18,261.89
  4. Step 4: Simplify right side
    30,198.80x = 760,929,467.28
  5. Step 5: Solve for x
    x = 760,929,467.28/30,198.80
  6. Step 6: Final answer
    x = 25,197.35

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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.