Home / 18,772.45-25,846.97-15,933.92

Finding the Fourth Proportional to 18,772.45, 25,846.97 and 15,933.92

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Solution

The fourth proportional to 18,772.45, 25,846.97 and 15,933.92 is: 21,938.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,772.45 : 25,846.97 = 15,933.92 : x
  2. Step 2: Convert to fraction form
    18,772.45/25,846.97 = 15,933.92/x
  3. Step 3: Cross multiply
    18,772.45x = 25,846.97 × 15,933.92
  4. Step 4: Simplify right side
    18,772.45x = 411,843,343.32
  5. Step 5: Solve for x
    x = 411,843,343.32/18,772.45
  6. Step 6: Final answer
    x = 21,938.71

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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.