Home / 20,008.40-27,611.22-11,055.72

Finding the Fourth Proportional to 20,008.40, 27,611.22 and 11,055.72

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Solution

The fourth proportional to 20,008.40, 27,611.22 and 11,055.72 is: 15,256.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,008.40 : 27,611.22 = 11,055.72 : x
  2. Step 2: Convert to fraction form
    20,008.40/27,611.22 = 11,055.72/x
  3. Step 3: Cross multiply
    20,008.40x = 27,611.22 × 11,055.72
  4. Step 4: Simplify right side
    20,008.40x = 305,261,751.47
  5. Step 5: Solve for x
    x = 305,261,751.47/20,008.40
  6. Step 6: Final answer
    x = 15,256.68

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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.