Home / 28,183.54-38,892.80-15,608.02

Finding the Fourth Proportional to 28,183.54, 38,892.80 and 15,608.02

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Solution

The fourth proportional to 28,183.54, 38,892.80 and 15,608.02 is: 21,538.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,183.54 : 38,892.80 = 15,608.02 : x
  2. Step 2: Convert to fraction form
    28,183.54/38,892.80 = 15,608.02/x
  3. Step 3: Cross multiply
    28,183.54x = 38,892.80 × 15,608.02
  4. Step 4: Simplify right side
    28,183.54x = 607,039,600.26
  5. Step 5: Solve for x
    x = 607,039,600.26/28,183.54
  6. Step 6: Final answer
    x = 21,538.80

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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.