Home / 20,684.19-28,544.68-11,732.30

Finding the Fourth Proportional to 20,684.19, 28,544.68 and 11,732.30

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Solution

The fourth proportional to 20,684.19, 28,544.68 and 11,732.30 is: 16,190.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,684.19 : 28,544.68 = 11,732.30 : x
  2. Step 2: Convert to fraction form
    20,684.19/28,544.68 = 11,732.30/x
  3. Step 3: Cross multiply
    20,684.19x = 28,544.68 × 11,732.30
  4. Step 4: Simplify right side
    20,684.19x = 334,894,749.16
  5. Step 5: Solve for x
    x = 334,894,749.16/20,684.19
  6. Step 6: Final answer
    x = 16,190.86

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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.