Home / 20,952.98-31,438.73-8,481.92

Finding the Fourth Proportional to 20,952.98, 31,438.73 and 8,481.92

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Solution

The fourth proportional to 20,952.98, 31,438.73 and 8,481.92 is: 12,726.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,952.98 : 31,438.73 = 8,481.92 : x
  2. Step 2: Convert to fraction form
    20,952.98/31,438.73 = 8,481.92/x
  3. Step 3: Cross multiply
    20,952.98x = 31,438.73 × 8,481.92
  4. Step 4: Simplify right side
    20,952.98x = 266,660,656.77
  5. Step 5: Solve for x
    x = 266,660,656.77/20,952.98
  6. Step 6: Final answer
    x = 12,726.62

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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.