Home / 20,253.92-30,387.12-7,106.48

Finding the Fourth Proportional to 20,253.92, 30,387.12 and 7,106.48

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Solution

The fourth proportional to 20,253.92, 30,387.12 and 7,106.48 is: 10,661.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,253.92 : 30,387.12 = 7,106.48 : x
  2. Step 2: Convert to fraction form
    20,253.92/30,387.12 = 7,106.48/x
  3. Step 3: Cross multiply
    20,253.92x = 30,387.12 × 7,106.48
  4. Step 4: Simplify right side
    20,253.92x = 215,945,460.54
  5. Step 5: Solve for x
    x = 215,945,460.54/20,253.92
  6. Step 6: Final answer
    x = 10,661.91

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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.