Home / 19,571.42-27,020.99-15,086.86

Finding the Fourth Proportional to 19,571.42, 27,020.99 and 15,086.86

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Solution

The fourth proportional to 19,571.42, 27,020.99 and 15,086.86 is: 20,829.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,571.42 : 27,020.99 = 15,086.86 : x
  2. Step 2: Convert to fraction form
    19,571.42/27,020.99 = 15,086.86/x
  3. Step 3: Cross multiply
    19,571.42x = 27,020.99 × 15,086.86
  4. Step 4: Simplify right side
    19,571.42x = 407,661,863.36
  5. Step 5: Solve for x
    x = 407,661,863.36/19,571.42
  6. Step 6: Final answer
    x = 20,829.44

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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.