Home / 39,801.32-54,924.46-21,896.16

Finding the Fourth Proportional to 39,801.32, 54,924.46 and 21,896.16

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Solution

The fourth proportional to 39,801.32, 54,924.46 and 21,896.16 is: 30,215.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,801.32 : 54,924.46 = 21,896.16 : x
  2. Step 2: Convert to fraction form
    39,801.32/54,924.46 = 21,896.16/x
  3. Step 3: Cross multiply
    39,801.32x = 54,924.46 × 21,896.16
  4. Step 4: Simplify right side
    39,801.32x = 1,202,634,764.07
  5. Step 5: Solve for x
    x = 1,202,634,764.07/39,801.32
  6. Step 6: Final answer
    x = 30,215.95

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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.