Home / 36,920.28-55,345.86-20,469.72

Finding the Fourth Proportional to 36,920.28, 55,345.86 and 20,469.72

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Solution

The fourth proportional to 36,920.28, 55,345.86 and 20,469.72 is: 30,685.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,920.28 : 55,345.86 = 20,469.72 : x
  2. Step 2: Convert to fraction form
    36,920.28/55,345.86 = 20,469.72/x
  3. Step 3: Cross multiply
    36,920.28x = 55,345.86 × 20,469.72
  4. Step 4: Simplify right side
    36,920.28x = 1,132,914,257.36
  5. Step 5: Solve for x
    x = 1,132,914,257.36/36,920.28
  6. Step 6: Final answer
    x = 30,685.42

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.