Home / 20,759.44-31,155.60-9,081.04

Finding the Fourth Proportional to 20,759.44, 31,155.60 and 9,081.04

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Solution

The fourth proportional to 20,759.44, 31,155.60 and 9,081.04 is: 13,628.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,759.44 : 31,155.60 = 9,081.04 : x
  2. Step 2: Convert to fraction form
    20,759.44/31,155.60 = 9,081.04/x
  3. Step 3: Cross multiply
    20,759.44x = 31,155.60 × 9,081.04
  4. Step 4: Simplify right side
    20,759.44x = 282,925,249.82
  5. Step 5: Solve for x
    x = 282,925,249.82/20,759.44
  6. Step 6: Final answer
    x = 13,628.75

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.