Home / 18,278.27-25,200.55-14,991.92

Finding the Fourth Proportional to 18,278.27, 25,200.55 and 14,991.92

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Solution

The fourth proportional to 18,278.27, 25,200.55 and 14,991.92 is: 20,669.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,278.27 : 25,200.55 = 14,991.92 : x
  2. Step 2: Convert to fraction form
    18,278.27/25,200.55 = 14,991.92/x
  3. Step 3: Cross multiply
    18,278.27x = 25,200.55 × 14,991.92
  4. Step 4: Simplify right side
    18,278.27x = 377,804,629.56
  5. Step 5: Solve for x
    x = 377,804,629.56/18,278.27
  6. Step 6: Final answer
    x = 20,669.61

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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.