Home / 20,563.03-30,844.55-11,779.21

Finding the Fourth Proportional to 20,563.03, 30,844.55 and 11,779.21

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Solution

The fourth proportional to 20,563.03, 30,844.55 and 11,779.21 is: 17,668.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,563.03 : 30,844.55 = 11,779.21 : x
  2. Step 2: Convert to fraction form
    20,563.03/30,844.55 = 11,779.21/x
  3. Step 3: Cross multiply
    20,563.03x = 30,844.55 × 11,779.21
  4. Step 4: Simplify right side
    20,563.03x = 363,324,431.81
  5. Step 5: Solve for x
    x = 363,324,431.81/20,563.03
  6. Step 6: Final answer
    x = 17,668.82

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.