Home / 38,984.40-53,765.64-30,021.84

Finding the Fourth Proportional to 38,984.40, 53,765.64 and 30,021.84

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Solution

The fourth proportional to 38,984.40, 53,765.64 and 30,021.84 is: 41,404.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,984.40 : 53,765.64 = 30,021.84 : x
  2. Step 2: Convert to fraction form
    38,984.40/53,765.64 = 30,021.84/x
  3. Step 3: Cross multiply
    38,984.40x = 53,765.64 × 30,021.84
  4. Step 4: Simplify right side
    38,984.40x = 1,614,143,441.58
  5. Step 5: Solve for x
    x = 1,614,143,441.58/38,984.40
  6. Step 6: Final answer
    x = 41,404.86

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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.