Home / 20,873.39-31,313.33-7,021.31

Finding the Fourth Proportional to 20,873.39, 31,313.33 and 7,021.31

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Solution

The fourth proportional to 20,873.39, 31,313.33 and 7,021.31 is: 10,533.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,873.39 : 31,313.33 = 7,021.31 : x
  2. Step 2: Convert to fraction form
    20,873.39/31,313.33 = 7,021.31/x
  3. Step 3: Cross multiply
    20,873.39x = 31,313.33 × 7,021.31
  4. Step 4: Simplify right side
    20,873.39x = 219,860,692.90
  5. Step 5: Solve for x
    x = 219,860,692.90/20,873.39
  6. Step 6: Final answer
    x = 10,533.06

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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.