Home / 20,933.84-31,396.56-9,080.48

Finding the Fourth Proportional to 20,933.84, 31,396.56 and 9,080.48

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Solution

The fourth proportional to 20,933.84, 31,396.56 and 9,080.48 is: 13,618.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,933.84 : 31,396.56 = 9,080.48 : x
  2. Step 2: Convert to fraction form
    20,933.84/31,396.56 = 9,080.48/x
  3. Step 3: Cross multiply
    20,933.84x = 31,396.56 × 9,080.48
  4. Step 4: Simplify right side
    20,933.84x = 285,095,835.15
  5. Step 5: Solve for x
    x = 285,095,835.15/20,933.84
  6. Step 6: Final answer
    x = 13,618.90

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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.