Home / 39,910.08-55,076.14-22,004.78

Finding the Fourth Proportional to 39,910.08, 55,076.14 and 22,004.78

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Solution

The fourth proportional to 39,910.08, 55,076.14 and 22,004.78 is: 30,366.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,910.08 : 55,076.14 = 22,004.78 : x
  2. Step 2: Convert to fraction form
    39,910.08/55,076.14 = 22,004.78/x
  3. Step 3: Cross multiply
    39,910.08x = 55,076.14 × 22,004.78
  4. Step 4: Simplify right side
    39,910.08x = 1,211,938,096.07
  5. Step 5: Solve for x
    x = 1,211,938,096.07/39,910.08
  6. Step 6: Final answer
    x = 30,366.71

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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.