Home / 20,940.83-31,385.67-9,832.68

Finding the Fourth Proportional to 20,940.83, 31,385.67 and 9,832.68

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Solution

The fourth proportional to 20,940.83, 31,385.67 and 9,832.68 is: 14,737.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,940.83 : 31,385.67 = 9,832.68 : x
  2. Step 2: Convert to fraction form
    20,940.83/31,385.67 = 9,832.68/x
  3. Step 3: Cross multiply
    20,940.83x = 31,385.67 × 9,832.68
  4. Step 4: Simplify right side
    20,940.83x = 308,605,249.70
  5. Step 5: Solve for x
    x = 308,605,249.70/20,940.83
  6. Step 6: Final answer
    x = 14,737.01

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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.