Home / 28,453.98-39,262.87-15,879.26

Finding the Fourth Proportional to 28,453.98, 39,262.87 and 15,879.26

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Solution

The fourth proportional to 28,453.98, 39,262.87 and 15,879.26 is: 21,911.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,453.98 : 39,262.87 = 15,879.26 : x
  2. Step 2: Convert to fraction form
    28,453.98/39,262.87 = 15,879.26/x
  3. Step 3: Cross multiply
    28,453.98x = 39,262.87 × 15,879.26
  4. Step 4: Simplify right side
    28,453.98x = 623,465,321.08
  5. Step 5: Solve for x
    x = 623,465,321.08/28,453.98
  6. Step 6: Final answer
    x = 21,911.36

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.