Home / 20,794.57-28,697.21-11,363.74

Finding the Fourth Proportional to 20,794.57, 28,697.21 and 11,363.74

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Solution

The fourth proportional to 20,794.57, 28,697.21 and 11,363.74 is: 15,682.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,794.57 : 28,697.21 = 11,363.74 : x
  2. Step 2: Convert to fraction form
    20,794.57/28,697.21 = 11,363.74/x
  3. Step 3: Cross multiply
    20,794.57x = 28,697.21 × 11,363.74
  4. Step 4: Simplify right side
    20,794.57x = 326,107,489.68
  5. Step 5: Solve for x
    x = 326,107,489.68/20,794.57
  6. Step 6: Final answer
    x = 15,682.34

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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.