Home / 20,523.23-28,322.07-11,091.80

Finding the Fourth Proportional to 20,523.23, 28,322.07 and 11,091.80

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Solution

The fourth proportional to 20,523.23, 28,322.07 and 11,091.80 is: 15,306.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,523.23 : 28,322.07 = 11,091.80 : x
  2. Step 2: Convert to fraction form
    20,523.23/28,322.07 = 11,091.80/x
  3. Step 3: Cross multiply
    20,523.23x = 28,322.07 × 11,091.80
  4. Step 4: Simplify right side
    20,523.23x = 314,142,736.03
  5. Step 5: Solve for x
    x = 314,142,736.03/20,523.23
  6. Step 6: Final answer
    x = 15,306.69

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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.