Home / 20,009.07-27,611.78-11,056.39

Finding the Fourth Proportional to 20,009.07, 27,611.78 and 11,056.39

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Solution

The fourth proportional to 20,009.07, 27,611.78 and 11,056.39 is: 15,257.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,009.07 : 27,611.78 = 11,056.39 : x
  2. Step 2: Convert to fraction form
    20,009.07/27,611.78 = 11,056.39/x
  3. Step 3: Cross multiply
    20,009.07x = 27,611.78 × 11,056.39
  4. Step 4: Simplify right side
    20,009.07x = 305,286,483.96
  5. Step 5: Solve for x
    x = 305,286,483.96/20,009.07
  6. Step 6: Final answer
    x = 15,257.40

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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.