Home / 28,139.24-38,832.54-16,204.70

Finding the Fourth Proportional to 28,139.24, 38,832.54 and 16,204.70

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Solution

The fourth proportional to 28,139.24, 38,832.54 and 16,204.70 is: 22,362.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,139.24 : 38,832.54 = 16,204.70 : x
  2. Step 2: Convert to fraction form
    28,139.24/38,832.54 = 16,204.70/x
  3. Step 3: Cross multiply
    28,139.24x = 38,832.54 × 16,204.70
  4. Step 4: Simplify right side
    28,139.24x = 629,269,660.94
  5. Step 5: Solve for x
    x = 629,269,660.94/28,139.24
  6. Step 6: Final answer
    x = 22,362.71

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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.