Home / 28,183.52-38,893.32-15,608.48

Finding the Fourth Proportional to 28,183.52, 38,893.32 and 15,608.48

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Solution

The fourth proportional to 28,183.52, 38,893.32 and 15,608.48 is: 21,539.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,183.52 : 38,893.32 = 15,608.48 : x
  2. Step 2: Convert to fraction form
    28,183.52/38,893.32 = 15,608.48/x
  3. Step 3: Cross multiply
    28,183.52x = 38,893.32 × 15,608.48
  4. Step 4: Simplify right side
    28,183.52x = 607,065,607.35
  5. Step 5: Solve for x
    x = 607,065,607.35/28,183.52
  6. Step 6: Final answer
    x = 21,539.74

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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.