Home / 28,739.26-43,119.42-12,103.48

Finding the Fourth Proportional to 28,739.26, 43,119.42 and 12,103.48

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Solution

The fourth proportional to 28,739.26, 43,119.42 and 12,103.48 is: 18,159.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,739.26 : 43,119.42 = 12,103.48 : x
  2. Step 2: Convert to fraction form
    28,739.26/43,119.42 = 12,103.48/x
  3. Step 3: Cross multiply
    28,739.26x = 43,119.42 × 12,103.48
  4. Step 4: Simplify right side
    28,739.26x = 521,895,037.58
  5. Step 5: Solve for x
    x = 521,895,037.58/28,739.26
  6. Step 6: Final answer
    x = 18,159.65

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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.