Home / 20,008.26-27,611.40-11,055.78

Finding the Fourth Proportional to 20,008.26, 27,611.40 and 11,055.78

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Solution

The fourth proportional to 20,008.26, 27,611.40 and 11,055.78 is: 15,256.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,008.26 : 27,611.40 = 11,055.78 : x
  2. Step 2: Convert to fraction form
    20,008.26/27,611.40 = 11,055.78/x
  3. Step 3: Cross multiply
    20,008.26x = 27,611.40 × 11,055.78
  4. Step 4: Simplify right side
    20,008.26x = 305,265,563.89
  5. Step 5: Solve for x
    x = 305,265,563.89/20,008.26
  6. Step 6: Final answer
    x = 15,256.98

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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.