Home / 20,009.40-27,612.60-11,056.72

Finding the Fourth Proportional to 20,009.40, 27,612.60 and 11,056.72

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Solution

The fourth proportional to 20,009.40, 27,612.60 and 11,056.72 is: 15,258.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,009.40 : 27,612.60 = 11,056.72 : x
  2. Step 2: Convert to fraction form
    20,009.40/27,612.60 = 11,056.72/x
  3. Step 3: Cross multiply
    20,009.40x = 27,612.60 × 11,056.72
  4. Step 4: Simplify right side
    20,009.40x = 305,304,786.67
  5. Step 5: Solve for x
    x = 305,304,786.67/20,009.40
  6. Step 6: Final answer
    x = 15,258.07

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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.