Home / 25,383.88-38,079.45-7,855.07

Finding the Fourth Proportional to 25,383.88, 38,079.45 and 7,855.07

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Solution

The fourth proportional to 25,383.88, 38,079.45 and 7,855.07 is: 11,783.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,383.88 : 38,079.45 = 7,855.07 : x
  2. Step 2: Convert to fraction form
    25,383.88/38,079.45 = 7,855.07/x
  3. Step 3: Cross multiply
    25,383.88x = 38,079.45 × 7,855.07
  4. Step 4: Simplify right side
    25,383.88x = 299,116,745.31
  5. Step 5: Solve for x
    x = 299,116,745.31/25,383.88
  6. Step 6: Final answer
    x = 11,783.73

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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.