Home / 20,105.80-30,148.92-6,063.20

Finding the Fourth Proportional to 20,105.80, 30,148.92 and 6,063.20

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Solution

The fourth proportional to 20,105.80, 30,148.92 and 6,063.20 is: 9,091.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,105.80 : 30,148.92 = 6,063.20 : x
  2. Step 2: Convert to fraction form
    20,105.80/30,148.92 = 6,063.20/x
  3. Step 3: Cross multiply
    20,105.80x = 30,148.92 × 6,063.20
  4. Step 4: Simplify right side
    20,105.80x = 182,798,931.74
  5. Step 5: Solve for x
    x = 182,798,931.74/20,105.80
  6. Step 6: Final answer
    x = 9,091.85

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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.