Home / 21,020.58-31,535.82-6,229.62

Finding the Fourth Proportional to 21,020.58, 31,535.82 and 6,229.62

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Solution

The fourth proportional to 21,020.58, 31,535.82 and 6,229.62 is: 9,345.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,020.58 : 31,535.82 = 6,229.62 : x
  2. Step 2: Convert to fraction form
    21,020.58/31,535.82 = 6,229.62/x
  3. Step 3: Cross multiply
    21,020.58x = 31,535.82 × 6,229.62
  4. Step 4: Simplify right side
    21,020.58x = 196,456,174.99
  5. Step 5: Solve for x
    x = 196,456,174.99/21,020.58
  6. Step 6: Final answer
    x = 9,345.90

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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.