Home / 20,523.05-28,321.59-11,573.44

Finding the Fourth Proportional to 20,523.05, 28,321.59 and 11,573.44

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Solution

The fourth proportional to 20,523.05, 28,321.59 and 11,573.44 is: 15,971.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,523.05 : 28,321.59 = 11,573.44 : x
  2. Step 2: Convert to fraction form
    20,523.05/28,321.59 = 11,573.44/x
  3. Step 3: Cross multiply
    20,523.05x = 28,321.59 × 11,573.44
  4. Step 4: Simplify right side
    20,523.05x = 327,778,222.57
  5. Step 5: Solve for x
    x = 327,778,222.57/20,523.05
  6. Step 6: Final answer
    x = 15,971.23

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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.