Home / 20,453.38-30,663.62-11,563.22

Finding the Fourth Proportional to 20,453.38, 30,663.62 and 11,563.22

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Solution

The fourth proportional to 20,453.38, 30,663.62 and 11,563.22 is: 17,335.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,453.38 : 30,663.62 = 11,563.22 : x
  2. Step 2: Convert to fraction form
    20,453.38/30,663.62 = 11,563.22/x
  3. Step 3: Cross multiply
    20,453.38x = 30,663.62 × 11,563.22
  4. Step 4: Simplify right side
    20,453.38x = 354,570,184.06
  5. Step 5: Solve for x
    x = 354,570,184.06/20,453.38
  6. Step 6: Final answer
    x = 17,335.53

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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.