Home / 21,195.99-31,794.12-6,404.85

Finding the Fourth Proportional to 21,195.99, 31,794.12 and 6,404.85

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Solution

The fourth proportional to 21,195.99, 31,794.12 and 6,404.85 is: 9,607.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,195.99 : 31,794.12 = 6,404.85 : x
  2. Step 2: Convert to fraction form
    21,195.99/31,794.12 = 6,404.85/x
  3. Step 3: Cross multiply
    21,195.99x = 31,794.12 × 6,404.85
  4. Step 4: Simplify right side
    21,195.99x = 203,636,569.48
  5. Step 5: Solve for x
    x = 203,636,569.48/21,195.99
  6. Step 6: Final answer
    x = 9,607.32

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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.