Home / 20,695.86-28,559.44-11,743.17

Finding the Fourth Proportional to 20,695.86, 28,559.44 and 11,743.17

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Solution

The fourth proportional to 20,695.86, 28,559.44 and 11,743.17 is: 16,205.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,695.86 : 28,559.44 = 11,743.17 : x
  2. Step 2: Convert to fraction form
    20,695.86/28,559.44 = 11,743.17/x
  3. Step 3: Cross multiply
    20,695.86x = 28,559.44 × 11,743.17
  4. Step 4: Simplify right side
    20,695.86x = 335,378,329.67
  5. Step 5: Solve for x
    x = 335,378,329.67/20,695.86
  6. Step 6: Final answer
    x = 16,205.09

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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.