Home / 39,824.56-54,956.61-21,919.58

Finding the Fourth Proportional to 39,824.56, 54,956.61 and 21,919.58

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Solution

The fourth proportional to 39,824.56, 54,956.61 and 21,919.58 is: 30,248.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,824.56 : 54,956.61 = 21,919.58 : x
  2. Step 2: Convert to fraction form
    39,824.56/54,956.61 = 21,919.58/x
  3. Step 3: Cross multiply
    39,824.56x = 54,956.61 × 21,919.58
  4. Step 4: Simplify right side
    39,824.56x = 1,204,625,740.73
  5. Step 5: Solve for x
    x = 1,204,625,740.73/39,824.56
  6. Step 6: Final answer
    x = 30,248.31

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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.