Home / 30,267.40-41,770.20-18,323.98

Finding the Fourth Proportional to 30,267.40, 41,770.20 and 18,323.98

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Solution

The fourth proportional to 30,267.40, 41,770.20 and 18,323.98 is: 25,287.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,267.40 : 41,770.20 = 18,323.98 : x
  2. Step 2: Convert to fraction form
    30,267.40/41,770.20 = 18,323.98/x
  3. Step 3: Cross multiply
    30,267.40x = 41,770.20 × 18,323.98
  4. Step 4: Simplify right side
    30,267.40x = 765,396,309.40
  5. Step 5: Solve for x
    x = 765,396,309.40/30,267.40
  6. Step 6: Final answer
    x = 25,287.81

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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.