Home / 20,406.76-30,583.83-9,874.31

Finding the Fourth Proportional to 20,406.76, 30,583.83 and 9,874.31

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Solution

The fourth proportional to 20,406.76, 30,583.83 and 9,874.31 is: 14,798.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,406.76 : 30,583.83 = 9,874.31 : x
  2. Step 2: Convert to fraction form
    20,406.76/30,583.83 = 9,874.31/x
  3. Step 3: Cross multiply
    20,406.76x = 30,583.83 × 9,874.31
  4. Step 4: Simplify right side
    20,406.76x = 301,994,046.97
  5. Step 5: Solve for x
    x = 301,994,046.97/20,406.76
  6. Step 6: Final answer
    x = 14,798.73

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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.