Home / 30,209.77-41,690.24-16,780.38

Finding the Fourth Proportional to 30,209.77, 41,690.24 and 16,780.38

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Solution

The fourth proportional to 30,209.77, 41,690.24 and 16,780.38 is: 23,157.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,209.77 : 41,690.24 = 16,780.38 : x
  2. Step 2: Convert to fraction form
    30,209.77/41,690.24 = 16,780.38/x
  3. Step 3: Cross multiply
    30,209.77x = 41,690.24 × 16,780.38
  4. Step 4: Simplify right side
    30,209.77x = 699,577,777.14
  5. Step 5: Solve for x
    x = 699,577,777.14/30,209.77
  6. Step 6: Final answer
    x = 23,157.34

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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.