Home / 20,759.32-28,651.78-13,001.73

Finding the Fourth Proportional to 20,759.32, 28,651.78 and 13,001.73

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Solution

The fourth proportional to 20,759.32, 28,651.78 and 13,001.73 is: 17,944.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,759.32 : 28,651.78 = 13,001.73 : x
  2. Step 2: Convert to fraction form
    20,759.32/28,651.78 = 13,001.73/x
  3. Step 3: Cross multiply
    20,759.32x = 28,651.78 × 13,001.73
  4. Step 4: Simplify right side
    20,759.32x = 372,522,616.39
  5. Step 5: Solve for x
    x = 372,522,616.39/20,759.32
  6. Step 6: Final answer
    x = 17,944.84

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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.