Home / 18,928.87-25,932.67-18,219.47

Finding the Fourth Proportional to 18,928.87, 25,932.67 and 18,219.47

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Solution

The fourth proportional to 18,928.87, 25,932.67 and 18,219.47 is: 24,960.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,928.87 : 25,932.67 = 18,219.47 : x
  2. Step 2: Convert to fraction form
    18,928.87/25,932.67 = 18,219.47/x
  3. Step 3: Cross multiply
    18,928.87x = 25,932.67 × 18,219.47
  4. Step 4: Simplify right side
    18,928.87x = 472,479,327.87
  5. Step 5: Solve for x
    x = 472,479,327.87/18,928.87
  6. Step 6: Final answer
    x = 24,960.78

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.