Home / 20,266.96-27,965.55-11,313.22

Finding the Fourth Proportional to 20,266.96, 27,965.55 and 11,313.22

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Solution

The fourth proportional to 20,266.96, 27,965.55 and 11,313.22 is: 15,610.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,266.96 : 27,965.55 = 11,313.22 : x
  2. Step 2: Convert to fraction form
    20,266.96/27,965.55 = 11,313.22/x
  3. Step 3: Cross multiply
    20,266.96x = 27,965.55 × 11,313.22
  4. Step 4: Simplify right side
    20,266.96x = 316,380,419.57
  5. Step 5: Solve for x
    x = 316,380,419.57/20,266.96
  6. Step 6: Final answer
    x = 15,610.65

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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.