Home / 20,009.26-27,612.78-11,056.78

Finding the Fourth Proportional to 20,009.26, 27,612.78 and 11,056.78

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Solution

The fourth proportional to 20,009.26, 27,612.78 and 11,056.78 is: 15,258.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,009.26 : 27,612.78 = 11,056.78 : x
  2. Step 2: Convert to fraction form
    20,009.26/27,612.78 = 11,056.78/x
  3. Step 3: Cross multiply
    20,009.26x = 27,612.78 × 11,056.78
  4. Step 4: Simplify right side
    20,009.26x = 305,308,433.65
  5. Step 5: Solve for x
    x = 305,308,433.65/20,009.26
  6. Step 6: Final answer
    x = 15,258.36

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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.