Home / 39,910.82-55,079.40-22,005.79

Finding the Fourth Proportional to 39,910.82, 55,079.40 and 22,005.79

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Solution

The fourth proportional to 39,910.82, 55,079.40 and 22,005.79 is: 30,369.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,910.82 : 55,079.40 = 22,005.79 : x
  2. Step 2: Convert to fraction form
    39,910.82/55,079.40 = 22,005.79/x
  3. Step 3: Cross multiply
    39,910.82x = 55,079.40 × 22,005.79
  4. Step 4: Simplify right side
    39,910.82x = 1,212,065,861.10
  5. Step 5: Solve for x
    x = 1,212,065,861.10/39,910.82
  6. Step 6: Final answer
    x = 30,369.36

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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.