Home / 39,928.76-55,091.52-29,299.92

Finding the Fourth Proportional to 39,928.76, 55,091.52 and 29,299.92

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Solution

The fourth proportional to 39,928.76, 55,091.52 and 29,299.92 is: 40,426.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,928.76 : 55,091.52 = 29,299.92 : x
  2. Step 2: Convert to fraction form
    39,928.76/55,091.52 = 29,299.92/x
  3. Step 3: Cross multiply
    39,928.76x = 55,091.52 × 29,299.92
  4. Step 4: Simplify right side
    39,928.76x = 1,614,177,128.68
  5. Step 5: Solve for x
    x = 1,614,177,128.68/39,928.76
  6. Step 6: Final answer
    x = 40,426.43

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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.