Home / 20,863.20-31,297.92-6,070.20

Finding the Fourth Proportional to 20,863.20, 31,297.92 and 6,070.20

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Solution

The fourth proportional to 20,863.20, 31,297.92 and 6,070.20 is: 9,106.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,863.20 : 31,297.92 = 6,070.20 : x
  2. Step 2: Convert to fraction form
    20,863.20/31,297.92 = 6,070.20/x
  3. Step 3: Cross multiply
    20,863.20x = 31,297.92 × 6,070.20
  4. Step 4: Simplify right side
    20,863.20x = 189,984,633.98
  5. Step 5: Solve for x
    x = 189,984,633.98/20,863.20
  6. Step 6: Final answer
    x = 9,106.21

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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.