Home / 30,257.12-41,743.37-18,766.71

Finding the Fourth Proportional to 30,257.12, 41,743.37 and 18,766.71

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Solution

The fourth proportional to 30,257.12, 41,743.37 and 18,766.71 is: 25,890.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,257.12 : 41,743.37 = 18,766.71 : x
  2. Step 2: Convert to fraction form
    30,257.12/41,743.37 = 18,766.71/x
  3. Step 3: Cross multiply
    30,257.12x = 41,743.37 × 18,766.71
  4. Step 4: Simplify right side
    30,257.12x = 783,385,625.38
  5. Step 5: Solve for x
    x = 783,385,625.38/30,257.12
  6. Step 6: Final answer
    x = 25,890.96

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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.