Home / 31,278.62-43,183.24-19,357.94

Finding the Fourth Proportional to 31,278.62, 43,183.24 and 19,357.94

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Solution

The fourth proportional to 31,278.62, 43,183.24 and 19,357.94 is: 26,725.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,278.62 : 43,183.24 = 19,357.94 : x
  2. Step 2: Convert to fraction form
    31,278.62/43,183.24 = 19,357.94/x
  3. Step 3: Cross multiply
    31,278.62x = 43,183.24 × 19,357.94
  4. Step 4: Simplify right side
    31,278.62x = 835,938,304.61
  5. Step 5: Solve for x
    x = 835,938,304.61/31,278.62
  6. Step 6: Final answer
    x = 26,725.55

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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.