Home / 20,944.14-28,894.72-11,986.86

Finding the Fourth Proportional to 20,944.14, 28,894.72 and 11,986.86

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Solution

The fourth proportional to 20,944.14, 28,894.72 and 11,986.86 is: 16,537.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,944.14 : 28,894.72 = 11,986.86 : x
  2. Step 2: Convert to fraction form
    20,944.14/28,894.72 = 11,986.86/x
  3. Step 3: Cross multiply
    20,944.14x = 28,894.72 × 11,986.86
  4. Step 4: Simplify right side
    20,944.14x = 346,356,963.38
  5. Step 5: Solve for x
    x = 346,356,963.38/20,944.14
  6. Step 6: Final answer
    x = 16,537.18

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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.