Home / 39,917.20-55,086.12-22,012.84

Finding the Fourth Proportional to 39,917.20, 55,086.12 and 22,012.84

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Solution

The fourth proportional to 39,917.20, 55,086.12 and 22,012.84 is: 30,377.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,917.20 : 55,086.12 = 22,012.84 : x
  2. Step 2: Convert to fraction form
    39,917.20/55,086.12 = 22,012.84/x
  3. Step 3: Cross multiply
    39,917.20x = 55,086.12 × 22,012.84
  4. Step 4: Simplify right side
    39,917.20x = 1,212,601,945.78
  5. Step 5: Solve for x
    x = 1,212,601,945.78/39,917.20
  6. Step 6: Final answer
    x = 30,377.93

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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.