Home / 30,450.11-45,674.13-10,728.15

Finding the Fourth Proportional to 30,450.11, 45,674.13 and 10,728.15

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Solution

The fourth proportional to 30,450.11, 45,674.13 and 10,728.15 is: 16,091.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,450.11 : 45,674.13 = 10,728.15 : x
  2. Step 2: Convert to fraction form
    30,450.11/45,674.13 = 10,728.15/x
  3. Step 3: Cross multiply
    30,450.11x = 45,674.13 × 10,728.15
  4. Step 4: Simplify right side
    30,450.11x = 489,998,917.76
  5. Step 5: Solve for x
    x = 489,998,917.76/30,450.11
  6. Step 6: Final answer
    x = 16,091.86

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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.