Home / 30,211.37-41,687.07-16,781.39

Finding the Fourth Proportional to 30,211.37, 41,687.07 and 16,781.39

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Solution

The fourth proportional to 30,211.37, 41,687.07 and 16,781.39 is: 23,155.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,211.37 : 41,687.07 = 16,781.39 : x
  2. Step 2: Convert to fraction form
    30,211.37/41,687.07 = 16,781.39/x
  3. Step 3: Cross multiply
    30,211.37x = 41,687.07 × 16,781.39
  4. Step 4: Simplify right side
    30,211.37x = 699,566,979.63
  5. Step 5: Solve for x
    x = 699,566,979.63/30,211.37
  6. Step 6: Final answer
    x = 23,155.75

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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.