Home / 38,628.76-57,969.09-13,668.70

Finding the Fourth Proportional to 38,628.76, 57,969.09 and 13,668.70

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Solution

The fourth proportional to 38,628.76, 57,969.09 and 13,668.70 is: 20,512.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,628.76 : 57,969.09 = 13,668.70 : x
  2. Step 2: Convert to fraction form
    38,628.76/57,969.09 = 13,668.70/x
  3. Step 3: Cross multiply
    38,628.76x = 57,969.09 × 13,668.70
  4. Step 4: Simplify right side
    38,628.76x = 792,362,100.48
  5. Step 5: Solve for x
    x = 792,362,100.48/38,628.76
  6. Step 6: Final answer
    x = 20,512.23

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.