Home / 39,076.20-53,924.78-21,170.12

Finding the Fourth Proportional to 39,076.20, 53,924.78 and 21,170.12

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Solution

The fourth proportional to 39,076.20, 53,924.78 and 21,170.12 is: 29,214.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,076.20 : 53,924.78 = 21,170.12 : x
  2. Step 2: Convert to fraction form
    39,076.20/53,924.78 = 21,170.12/x
  3. Step 3: Cross multiply
    39,076.20x = 53,924.78 × 21,170.12
  4. Step 4: Simplify right side
    39,076.20x = 1,141,594,063.57
  5. Step 5: Solve for x
    x = 1,141,594,063.57/39,076.20
  6. Step 6: Final answer
    x = 29,214.56

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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.