Home / 20,330-30,455.54-14,983.46

Finding the Fourth Proportional to 20,330, 30,455.54 and 14,983.46

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Solution

The fourth proportional to 20,330, 30,455.54 and 14,983.46 is: 22,446.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,330 : 30,455.54 = 14,983.46 : x
  2. Step 2: Convert to fraction form
    20,330/30,455.54 = 14,983.46/x
  3. Step 3: Cross multiply
    20,330x = 30,455.54 × 14,983.46
  4. Step 4: Simplify right side
    20,330x = 456,329,365.37
  5. Step 5: Solve for x
    x = 456,329,365.37/20,330
  6. Step 6: Final answer
    x = 22,446.11

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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.