Home / 20,695.38-28,559.64-11,263.96

Finding the Fourth Proportional to 20,695.38, 28,559.64 and 11,263.96

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Solution

The fourth proportional to 20,695.38, 28,559.64 and 11,263.96 is: 15,544.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,695.38 : 28,559.64 = 11,263.96 : x
  2. Step 2: Convert to fraction form
    20,695.38/28,559.64 = 11,263.96/x
  3. Step 3: Cross multiply
    20,695.38x = 28,559.64 × 11,263.96
  4. Step 4: Simplify right side
    20,695.38x = 321,694,642.57
  5. Step 5: Solve for x
    x = 321,694,642.57/20,695.38
  6. Step 6: Final answer
    x = 15,544.27

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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.