Home / 20,523.21-28,322.03-11,091.77

Finding the Fourth Proportional to 20,523.21, 28,322.03 and 11,091.77

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Solution

The fourth proportional to 20,523.21, 28,322.03 and 11,091.77 is: 15,306.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,523.21 : 28,322.03 = 11,091.77 : x
  2. Step 2: Convert to fraction form
    20,523.21/28,322.03 = 11,091.77/x
  3. Step 3: Cross multiply
    20,523.21x = 28,322.03 × 11,091.77
  4. Step 4: Simplify right side
    20,523.21x = 314,141,594.33
  5. Step 5: Solve for x
    x = 314,141,594.33/20,523.21
  6. Step 6: Final answer
    x = 15,306.65

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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.