Home / 37,758.75-52,107.09-20,991.75

Finding the Fourth Proportional to 37,758.75, 52,107.09 and 20,991.75

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Solution

The fourth proportional to 37,758.75, 52,107.09 and 20,991.75 is: 28,968.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,758.75 : 52,107.09 = 20,991.75 : x
  2. Step 2: Convert to fraction form
    37,758.75/52,107.09 = 20,991.75/x
  3. Step 3: Cross multiply
    37,758.75x = 52,107.09 × 20,991.75
  4. Step 4: Simplify right side
    37,758.75x = 1,093,819,006.51
  5. Step 5: Solve for x
    x = 1,093,819,006.51/37,758.75
  6. Step 6: Final answer
    x = 28,968.62

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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.