Home / 20,849.76-31,274.44-9,011.91

Finding the Fourth Proportional to 20,849.76, 31,274.44 and 9,011.91

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Solution

The fourth proportional to 20,849.76, 31,274.44 and 9,011.91 is: 13,517.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,849.76 : 31,274.44 = 9,011.91 : x
  2. Step 2: Convert to fraction form
    20,849.76/31,274.44 = 9,011.91/x
  3. Step 3: Cross multiply
    20,849.76x = 31,274.44 × 9,011.91
  4. Step 4: Simplify right side
    20,849.76x = 281,842,438.58
  5. Step 5: Solve for x
    x = 281,842,438.58/20,849.76
  6. Step 6: Final answer
    x = 13,517.78

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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.