Home / 42,380.46-63,571.07-10,790.57

Finding the Fourth Proportional to 42,380.46, 63,571.07 and 10,790.57

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Solution

The fourth proportional to 42,380.46, 63,571.07 and 10,790.57 is: 16,185.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,380.46 : 63,571.07 = 10,790.57 : x
  2. Step 2: Convert to fraction form
    42,380.46/63,571.07 = 10,790.57/x
  3. Step 3: Cross multiply
    42,380.46x = 63,571.07 × 10,790.57
  4. Step 4: Simplify right side
    42,380.46x = 685,967,709.00
  5. Step 5: Solve for x
    x = 685,967,709.00/42,380.46
  6. Step 6: Final answer
    x = 16,185.94

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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.