Home / 27,698.76-38,234.88-18,792.36

Finding the Fourth Proportional to 27,698.76, 38,234.88 and 18,792.36

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Solution

The fourth proportional to 27,698.76, 38,234.88 and 18,792.36 is: 25,940.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,698.76 : 38,234.88 = 18,792.36 : x
  2. Step 2: Convert to fraction form
    27,698.76/38,234.88 = 18,792.36/x
  3. Step 3: Cross multiply
    27,698.76x = 38,234.88 × 18,792.36
  4. Step 4: Simplify right side
    27,698.76x = 718,523,629.52
  5. Step 5: Solve for x
    x = 718,523,629.52/27,698.76
  6. Step 6: Final answer
    x = 25,940.64

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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.