Home / 26,620.87-39,959-19,608.80

Finding the Fourth Proportional to 26,620.87, 39,959 and 19,608.80

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Solution

The fourth proportional to 26,620.87, 39,959 and 19,608.80 is: 29,433.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,620.87 : 39,959 = 19,608.80 : x
  2. Step 2: Convert to fraction form
    26,620.87/39,959 = 19,608.80/x
  3. Step 3: Cross multiply
    26,620.87x = 39,959 × 19,608.80
  4. Step 4: Simplify right side
    26,620.87x = 783,548,039.20
  5. Step 5: Solve for x
    x = 783,548,039.20/26,620.87
  6. Step 6: Final answer
    x = 29,433.60

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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.