Home / 25,305.53-34,921.79-13,974.81

Finding the Fourth Proportional to 25,305.53, 34,921.79 and 13,974.81

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Solution

The fourth proportional to 25,305.53, 34,921.79 and 13,974.81 is: 19,285.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,305.53 : 34,921.79 = 13,974.81 : x
  2. Step 2: Convert to fraction form
    25,305.53/34,921.79 = 13,974.81/x
  3. Step 3: Cross multiply
    25,305.53x = 34,921.79 × 13,974.81
  4. Step 4: Simplify right side
    25,305.53x = 488,025,310.24
  5. Step 5: Solve for x
    x = 488,025,310.24/25,305.53
  6. Step 6: Final answer
    x = 19,285.33

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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.