Home / 20,205.45-30,287.52-13,632.30

Finding the Fourth Proportional to 20,205.45, 30,287.52 and 13,632.30

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Solution

The fourth proportional to 20,205.45, 30,287.52 and 13,632.30 is: 20,434.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,205.45 : 30,287.52 = 13,632.30 : x
  2. Step 2: Convert to fraction form
    20,205.45/30,287.52 = 13,632.30/x
  3. Step 3: Cross multiply
    20,205.45x = 30,287.52 × 13,632.30
  4. Step 4: Simplify right side
    20,205.45x = 412,888,558.90
  5. Step 5: Solve for x
    x = 412,888,558.90/20,205.45
  6. Step 6: Final answer
    x = 20,434.51

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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.