Home / 20,365.92-30,529.44-8,663.04

Finding the Fourth Proportional to 20,365.92, 30,529.44 and 8,663.04

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Solution

The fourth proportional to 20,365.92, 30,529.44 and 8,663.04 is: 12,986.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,365.92 : 30,529.44 = 8,663.04 : x
  2. Step 2: Convert to fraction form
    20,365.92/30,529.44 = 8,663.04/x
  3. Step 3: Cross multiply
    20,365.92x = 30,529.44 × 8,663.04
  4. Step 4: Simplify right side
    20,365.92x = 264,477,759.90
  5. Step 5: Solve for x
    x = 264,477,759.90/20,365.92
  6. Step 6: Final answer
    x = 12,986.29

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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.