Home / 20,396.23-28,147.23-11,444.38

Finding the Fourth Proportional to 20,396.23, 28,147.23 and 11,444.38

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Solution

The fourth proportional to 20,396.23, 28,147.23 and 11,444.38 is: 15,793.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,396.23 : 28,147.23 = 11,444.38 : x
  2. Step 2: Convert to fraction form
    20,396.23/28,147.23 = 11,444.38/x
  3. Step 3: Cross multiply
    20,396.23x = 28,147.23 × 11,444.38
  4. Step 4: Simplify right side
    20,396.23x = 322,127,525.70
  5. Step 5: Solve for x
    x = 322,127,525.70/20,396.23
  6. Step 6: Final answer
    x = 15,793.49

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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.