Home / 30,578.75-42,198.60-16,968.86

Finding the Fourth Proportional to 30,578.75, 42,198.60 and 16,968.86

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Solution

The fourth proportional to 30,578.75, 42,198.60 and 16,968.86 is: 23,416.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,578.75 : 42,198.60 = 16,968.86 : x
  2. Step 2: Convert to fraction form
    30,578.75/42,198.60 = 16,968.86/x
  3. Step 3: Cross multiply
    30,578.75x = 42,198.60 × 16,968.86
  4. Step 4: Simplify right side
    30,578.75x = 716,062,051.03
  5. Step 5: Solve for x
    x = 716,062,051.03/30,578.75
  6. Step 6: Final answer
    x = 23,416.98

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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.