Home / 20,695.66-28,559.86-11,264.22

Finding the Fourth Proportional to 20,695.66, 28,559.86 and 11,264.22

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Solution

The fourth proportional to 20,695.66, 28,559.86 and 11,264.22 is: 15,544.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,695.66 : 28,559.86 = 11,264.22 : x
  2. Step 2: Convert to fraction form
    20,695.66/28,559.86 = 11,264.22/x
  3. Step 3: Cross multiply
    20,695.66x = 28,559.86 × 11,264.22
  4. Step 4: Simplify right side
    20,695.66x = 321,704,546.21
  5. Step 5: Solve for x
    x = 321,704,546.21/20,695.66
  6. Step 6: Final answer
    x = 15,544.54

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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.