Home / 20,975.58-31,455.88-6,933.02

Finding the Fourth Proportional to 20,975.58, 31,455.88 and 6,933.02

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Solution

The fourth proportional to 20,975.58, 31,455.88 and 6,933.02 is: 10,397.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,975.58 : 31,455.88 = 6,933.02 : x
  2. Step 2: Convert to fraction form
    20,975.58/31,455.88 = 6,933.02/x
  3. Step 3: Cross multiply
    20,975.58x = 31,455.88 × 6,933.02
  4. Step 4: Simplify right side
    20,975.58x = 218,084,070.55
  5. Step 5: Solve for x
    x = 218,084,070.55/20,975.58
  6. Step 6: Final answer
    x = 10,397.05

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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.