Home / 20,601.77-30,905.60-6,371.34

Finding the Fourth Proportional to 20,601.77, 30,905.60 and 6,371.34

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Solution

The fourth proportional to 20,601.77, 30,905.60 and 6,371.34 is: 9,557.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,601.77 : 30,905.60 = 6,371.34 : x
  2. Step 2: Convert to fraction form
    20,601.77/30,905.60 = 6,371.34/x
  3. Step 3: Cross multiply
    20,601.77x = 30,905.60 × 6,371.34
  4. Step 4: Simplify right side
    20,601.77x = 196,910,053.65
  5. Step 5: Solve for x
    x = 196,910,053.65/20,601.77
  6. Step 6: Final answer
    x = 9,557.92

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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.