Home / 20,265.32-27,965.68-11,313.68

Finding the Fourth Proportional to 20,265.32, 27,965.68 and 11,313.68

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Solution

The fourth proportional to 20,265.32, 27,965.68 and 11,313.68 is: 15,612.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,265.32 : 27,965.68 = 11,313.68 : x
  2. Step 2: Convert to fraction form
    20,265.32/27,965.68 = 11,313.68/x
  3. Step 3: Cross multiply
    20,265.32x = 27,965.68 × 11,313.68
  4. Step 4: Simplify right side
    20,265.32x = 316,394,586.39
  5. Step 5: Solve for x
    x = 316,394,586.39/20,265.32
  6. Step 6: Final answer
    x = 15,612.61

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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.