Home / 20,761.04-31,150.69-10,898.03

Finding the Fourth Proportional to 20,761.04, 31,150.69 and 10,898.03

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Solution

The fourth proportional to 20,761.04, 31,150.69 and 10,898.03 is: 16,351.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,761.04 : 31,150.69 = 10,898.03 : x
  2. Step 2: Convert to fraction form
    20,761.04/31,150.69 = 10,898.03/x
  3. Step 3: Cross multiply
    20,761.04x = 31,150.69 × 10,898.03
  4. Step 4: Simplify right side
    20,761.04x = 339,481,204.77
  5. Step 5: Solve for x
    x = 339,481,204.77/20,761.04
  6. Step 6: Final answer
    x = 16,351.84

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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.