Home / 30,211.39-41,691.09-16,782.25

Finding the Fourth Proportional to 30,211.39, 41,691.09 and 16,782.25

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Solution

The fourth proportional to 30,211.39, 41,691.09 and 16,782.25 is: 23,159.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,211.39 : 41,691.09 = 16,782.25 : x
  2. Step 2: Convert to fraction form
    30,211.39/41,691.09 = 16,782.25/x
  3. Step 3: Cross multiply
    30,211.39x = 41,691.09 × 16,782.25
  4. Step 4: Simplify right side
    30,211.39x = 699,670,295.15
  5. Step 5: Solve for x
    x = 699,670,295.15/30,211.39
  6. Step 6: Final answer
    x = 23,159.16

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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.