Home / 30,207.41-41,687.61-16,778.72

Finding the Fourth Proportional to 30,207.41, 41,687.61 and 16,778.72

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Solution

The fourth proportional to 30,207.41, 41,687.61 and 16,778.72 is: 23,155.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,207.41 : 41,687.61 = 16,778.72 : x
  2. Step 2: Convert to fraction form
    30,207.41/41,687.61 = 16,778.72/x
  3. Step 3: Cross multiply
    30,207.41x = 41,687.61 × 16,778.72
  4. Step 4: Simplify right side
    30,207.41x = 699,464,527.22
  5. Step 5: Solve for x
    x = 699,464,527.22/30,207.41
  6. Step 6: Final answer
    x = 23,155.40

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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.