Home / 25,739.88-38,617.12-21,103.44

Finding the Fourth Proportional to 25,739.88, 38,617.12 and 21,103.44

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Solution

The fourth proportional to 25,739.88, 38,617.12 and 21,103.44 is: 31,661.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,739.88 : 38,617.12 = 21,103.44 : x
  2. Step 2: Convert to fraction form
    25,739.88/38,617.12 = 21,103.44/x
  3. Step 3: Cross multiply
    25,739.88x = 38,617.12 × 21,103.44
  4. Step 4: Simplify right side
    25,739.88x = 814,954,074.89
  5. Step 5: Solve for x
    x = 814,954,074.89/25,739.88
  6. Step 6: Final answer
    x = 31,661.15

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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.