Home / 38,983.35-53,794.81-21,986.58

Finding the Fourth Proportional to 38,983.35, 53,794.81 and 21,986.58

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Solution

The fourth proportional to 38,983.35, 53,794.81 and 21,986.58 is: 30,340.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,983.35 : 53,794.81 = 21,986.58 : x
  2. Step 2: Convert to fraction form
    38,983.35/53,794.81 = 21,986.58/x
  3. Step 3: Cross multiply
    38,983.35x = 53,794.81 × 21,986.58
  4. Step 4: Simplify right side
    38,983.35x = 1,182,763,624.68
  5. Step 5: Solve for x
    x = 1,182,763,624.68/38,983.35
  6. Step 6: Final answer
    x = 30,340.23

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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.