Home / 28,571.04-42,826.77-11,940.66

Finding the Fourth Proportional to 28,571.04, 42,826.77 and 11,940.66

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Solution

The fourth proportional to 28,571.04, 42,826.77 and 11,940.66 is: 17,898.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,571.04 : 42,826.77 = 11,940.66 : x
  2. Step 2: Convert to fraction form
    28,571.04/42,826.77 = 11,940.66/x
  3. Step 3: Cross multiply
    28,571.04x = 42,826.77 × 11,940.66
  4. Step 4: Simplify right side
    28,571.04x = 511,379,899.47
  5. Step 5: Solve for x
    x = 511,379,899.47/28,571.04
  6. Step 6: Final answer
    x = 17,898.54

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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.