Home / 18,470.94-25,474.15-15,613.51

Finding the Fourth Proportional to 18,470.94, 25,474.15 and 15,613.51

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Solution

The fourth proportional to 18,470.94, 25,474.15 and 15,613.51 is: 21,533.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,470.94 : 25,474.15 = 15,613.51 : x
  2. Step 2: Convert to fraction form
    18,470.94/25,474.15 = 15,613.51/x
  3. Step 3: Cross multiply
    18,470.94x = 25,474.15 × 15,613.51
  4. Step 4: Simplify right side
    18,470.94x = 397,740,811.54
  5. Step 5: Solve for x
    x = 397,740,811.54/18,470.94
  6. Step 6: Final answer
    x = 21,533.33

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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.