Home / 20,106.88-30,160.68-7,632.72

Finding the Fourth Proportional to 20,106.88, 30,160.68 and 7,632.72

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Solution

The fourth proportional to 20,106.88, 30,160.68 and 7,632.72 is: 11,449.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,106.88 : 30,160.68 = 7,632.72 : x
  2. Step 2: Convert to fraction form
    20,106.88/30,160.68 = 7,632.72/x
  3. Step 3: Cross multiply
    20,106.88x = 30,160.68 × 7,632.72
  4. Step 4: Simplify right side
    20,106.88x = 230,208,025.45
  5. Step 5: Solve for x
    x = 230,208,025.45/20,106.88
  6. Step 6: Final answer
    x = 11,449.22

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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.