Home / 28,121.92-38,812.95-16,183.01

Finding the Fourth Proportional to 28,121.92, 38,812.95 and 16,183.01

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Solution

The fourth proportional to 28,121.92, 38,812.95 and 16,183.01 is: 22,335.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,121.92 : 38,812.95 = 16,183.01 : x
  2. Step 2: Convert to fraction form
    28,121.92/38,812.95 = 16,183.01/x
  3. Step 3: Cross multiply
    28,121.92x = 38,812.95 × 16,183.01
  4. Step 4: Simplify right side
    28,121.92x = 628,110,455.01
  5. Step 5: Solve for x
    x = 628,110,455.01/28,121.92
  6. Step 6: Final answer
    x = 22,335.26

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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.