Home / 20,415.73-30,623.60-6,376.96

Finding the Fourth Proportional to 20,415.73, 30,623.60 and 6,376.96

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Solution

The fourth proportional to 20,415.73, 30,623.60 and 6,376.96 is: 9,565.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,415.73 : 30,623.60 = 6,376.96 : x
  2. Step 2: Convert to fraction form
    20,415.73/30,623.60 = 6,376.96/x
  3. Step 3: Cross multiply
    20,415.73x = 30,623.60 × 6,376.96
  4. Step 4: Simplify right side
    20,415.73x = 195,285,472.26
  5. Step 5: Solve for x
    x = 195,285,472.26/20,415.73
  6. Step 6: Final answer
    x = 9,565.44

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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.