Home / 20,424.92-30,638.38-5,633.50

Finding the Fourth Proportional to 20,424.92, 30,638.38 and 5,633.50

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Solution

The fourth proportional to 20,424.92, 30,638.38 and 5,633.50 is: 8,450.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,424.92 : 30,638.38 = 5,633.50 : x
  2. Step 2: Convert to fraction form
    20,424.92/30,638.38 = 5,633.50/x
  3. Step 3: Cross multiply
    20,424.92x = 30,638.38 × 5,633.50
  4. Step 4: Simplify right side
    20,424.92x = 172,601,313.73
  5. Step 5: Solve for x
    x = 172,601,313.73/20,424.92
  6. Step 6: Final answer
    x = 8,450.53

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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.