Home / 26,321.87-39,438.25-15,911.75

Finding the Fourth Proportional to 26,321.87, 39,438.25 and 15,911.75

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Solution

The fourth proportional to 26,321.87, 39,438.25 and 15,911.75 is: 23,840.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,321.87 : 39,438.25 = 15,911.75 : x
  2. Step 2: Convert to fraction form
    26,321.87/39,438.25 = 15,911.75/x
  3. Step 3: Cross multiply
    26,321.87x = 39,438.25 × 15,911.75
  4. Step 4: Simplify right side
    26,321.87x = 627,531,574.44
  5. Step 5: Solve for x
    x = 627,531,574.44/26,321.87
  6. Step 6: Final answer
    x = 23,840.69

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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.