Home / 28,761.84-43,147.68-13,180.80

Finding the Fourth Proportional to 28,761.84, 43,147.68 and 13,180.80

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Solution

The fourth proportional to 28,761.84, 43,147.68 and 13,180.80 is: 19,773.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,761.84 : 43,147.68 = 13,180.80 : x
  2. Step 2: Convert to fraction form
    28,761.84/43,147.68 = 13,180.80/x
  3. Step 3: Cross multiply
    28,761.84x = 43,147.68 × 13,180.80
  4. Step 4: Simplify right side
    28,761.84x = 568,720,940.54
  5. Step 5: Solve for x
    x = 568,720,940.54/28,761.84
  6. Step 6: Final answer
    x = 19,773.45

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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.