Home / 19,238.46-26,489.85-16,399.47

Finding the Fourth Proportional to 19,238.46, 26,489.85 and 16,399.47

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Solution

The fourth proportional to 19,238.46, 26,489.85 and 16,399.47 is: 22,580.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,238.46 : 26,489.85 = 16,399.47 : x
  2. Step 2: Convert to fraction form
    19,238.46/26,489.85 = 16,399.47/x
  3. Step 3: Cross multiply
    19,238.46x = 26,489.85 × 16,399.47
  4. Step 4: Simplify right side
    19,238.46x = 434,419,285.93
  5. Step 5: Solve for x
    x = 434,419,285.93/19,238.46
  6. Step 6: Final answer
    x = 22,580.78

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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.