Home / 20,800.73-31,213.44-7,662.32

Finding the Fourth Proportional to 20,800.73, 31,213.44 and 7,662.32

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Solution

The fourth proportional to 20,800.73, 31,213.44 and 7,662.32 is: 11,498.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,800.73 : 31,213.44 = 7,662.32 : x
  2. Step 2: Convert to fraction form
    20,800.73/31,213.44 = 7,662.32/x
  3. Step 3: Cross multiply
    20,800.73x = 31,213.44 × 7,662.32
  4. Step 4: Simplify right side
    20,800.73x = 239,167,209.51
  5. Step 5: Solve for x
    x = 239,167,209.51/20,800.73
  6. Step 6: Final answer
    x = 11,498.02

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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.