Home / 30,209.29-41,690.07-16,780.64

Finding the Fourth Proportional to 30,209.29, 41,690.07 and 16,780.64

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Solution

The fourth proportional to 30,209.29, 41,690.07 and 16,780.64 is: 23,157.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,209.29 : 41,690.07 = 16,780.64 : x
  2. Step 2: Convert to fraction form
    30,209.29/41,690.07 = 16,780.64/x
  3. Step 3: Cross multiply
    30,209.29x = 41,690.07 × 16,780.64
  4. Step 4: Simplify right side
    30,209.29x = 699,585,847.79
  5. Step 5: Solve for x
    x = 699,585,847.79/30,209.29
  6. Step 6: Final answer
    x = 23,157.97

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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.