Home / 30,872.72-46,303.70-8,680.83

Finding the Fourth Proportional to 30,872.72, 46,303.70 and 8,680.83

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Solution

The fourth proportional to 30,872.72, 46,303.70 and 8,680.83 is: 13,019.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,872.72 : 46,303.70 = 8,680.83 : x
  2. Step 2: Convert to fraction form
    30,872.72/46,303.70 = 8,680.83/x
  3. Step 3: Cross multiply
    30,872.72x = 46,303.70 × 8,680.83
  4. Step 4: Simplify right side
    30,872.72x = 401,954,504.67
  5. Step 5: Solve for x
    x = 401,954,504.67/30,872.72
  6. Step 6: Final answer
    x = 13,019.73

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.