Home / 20,711.96-28,582.26-11,759.72

Finding the Fourth Proportional to 20,711.96, 28,582.26 and 11,759.72

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Solution

The fourth proportional to 20,711.96, 28,582.26 and 11,759.72 is: 16,228.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,711.96 : 28,582.26 = 11,759.72 : x
  2. Step 2: Convert to fraction form
    20,711.96/28,582.26 = 11,759.72/x
  3. Step 3: Cross multiply
    20,711.96x = 28,582.26 × 11,759.72
  4. Step 4: Simplify right side
    20,711.96x = 336,119,374.57
  5. Step 5: Solve for x
    x = 336,119,374.57/20,711.96
  6. Step 6: Final answer
    x = 16,228.27

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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.