Home / 20,794.06-28,695.78-11,362.62

Finding the Fourth Proportional to 20,794.06, 28,695.78 and 11,362.62

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Solution

The fourth proportional to 20,794.06, 28,695.78 and 11,362.62 is: 15,680.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,794.06 : 28,695.78 = 11,362.62 : x
  2. Step 2: Convert to fraction form
    20,794.06/28,695.78 = 11,362.62/x
  3. Step 3: Cross multiply
    20,794.06x = 28,695.78 × 11,362.62
  4. Step 4: Simplify right side
    20,794.06x = 326,059,243.74
  5. Step 5: Solve for x
    x = 326,059,243.74/20,794.06
  6. Step 6: Final answer
    x = 15,680.40

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Double scale
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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.