Home / 28,759.06-43,138.62-9,039.34

Finding the Fourth Proportional to 28,759.06, 43,138.62 and 9,039.34

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Solution

The fourth proportional to 28,759.06, 43,138.62 and 9,039.34 is: 13,559.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,759.06 : 43,138.62 = 9,039.34 : x
  2. Step 2: Convert to fraction form
    28,759.06/43,138.62 = 9,039.34/x
  3. Step 3: Cross multiply
    28,759.06x = 43,138.62 × 9,039.34
  4. Step 4: Simplify right side
    28,759.06x = 389,944,653.31
  5. Step 5: Solve for x
    x = 389,944,653.31/28,759.06
  6. Step 6: Final answer
    x = 13,559.02

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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.