Home / 39,585.97-54,628.66-21,682.11

Finding the Fourth Proportional to 39,585.97, 54,628.66 and 21,682.11

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Solution

The fourth proportional to 39,585.97, 54,628.66 and 21,682.11 is: 29,921.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,585.97 : 54,628.66 = 21,682.11 : x
  2. Step 2: Convert to fraction form
    39,585.97/54,628.66 = 21,682.11/x
  3. Step 3: Cross multiply
    39,585.97x = 54,628.66 × 21,682.11
  4. Step 4: Simplify right side
    39,585.97x = 1,184,464,287.92
  5. Step 5: Solve for x
    x = 1,184,464,287.92/39,585.97
  6. Step 6: Final answer
    x = 29,921.32

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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.