Home / 20,794.69-28,697.38-11,363.86

Finding the Fourth Proportional to 20,794.69, 28,697.38 and 11,363.86

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Solution

The fourth proportional to 20,794.69, 28,697.38 and 11,363.86 is: 15,682.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,794.69 : 28,697.38 = 11,363.86 : x
  2. Step 2: Convert to fraction form
    20,794.69/28,697.38 = 11,363.86/x
  3. Step 3: Cross multiply
    20,794.69x = 28,697.38 × 11,363.86
  4. Step 4: Simplify right side
    20,794.69x = 326,113,008.69
  5. Step 5: Solve for x
    x = 326,113,008.69/20,794.69
  6. Step 6: Final answer
    x = 15,682.51

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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.