Home / 20,860.59-31,297.87-6,821.26

Finding the Fourth Proportional to 20,860.59, 31,297.87 and 6,821.26

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Solution

The fourth proportional to 20,860.59, 31,297.87 and 6,821.26 is: 10,234.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,860.59 : 31,297.87 = 6,821.26 : x
  2. Step 2: Convert to fraction form
    20,860.59/31,297.87 = 6,821.26/x
  3. Step 3: Cross multiply
    20,860.59x = 31,297.87 × 6,821.26
  4. Step 4: Simplify right side
    20,860.59x = 213,490,995.86
  5. Step 5: Solve for x
    x = 213,490,995.86/20,860.59
  6. Step 6: Final answer
    x = 10,234.18

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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.