Home / 39,912.12-55,031.94-29,822.76

Finding the Fourth Proportional to 39,912.12, 55,031.94 and 29,822.76

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Solution

The fourth proportional to 39,912.12, 55,031.94 and 29,822.76 is: 41,120.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,912.12 : 55,031.94 = 29,822.76 : x
  2. Step 2: Convert to fraction form
    39,912.12/55,031.94 = 29,822.76/x
  3. Step 3: Cross multiply
    39,912.12x = 55,031.94 × 29,822.76
  4. Step 4: Simplify right side
    39,912.12x = 1,641,204,338.95
  5. Step 5: Solve for x
    x = 1,641,204,338.95/39,912.12
  6. Step 6: Final answer
    x = 41,120.45

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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.