Home / 20,829.04-31,247.52-7,682.44

Finding the Fourth Proportional to 20,829.04, 31,247.52 and 7,682.44

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Solution

The fourth proportional to 20,829.04, 31,247.52 and 7,682.44 is: 11,525.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,829.04 : 31,247.52 = 7,682.44 : x
  2. Step 2: Convert to fraction form
    20,829.04/31,247.52 = 7,682.44/x
  3. Step 3: Cross multiply
    20,829.04x = 31,247.52 × 7,682.44
  4. Step 4: Simplify right side
    20,829.04x = 240,057,197.55
  5. Step 5: Solve for x
    x = 240,057,197.55/20,829.04
  6. Step 6: Final answer
    x = 11,525.12

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1.5x scale

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.