Home / 20,323.56-28,050.12-11,829.96

Finding the Fourth Proportional to 20,323.56, 28,050.12 and 11,829.96

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Solution

The fourth proportional to 20,323.56, 28,050.12 and 11,829.96 is: 16,327.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,323.56 : 28,050.12 = 11,829.96 : x
  2. Step 2: Convert to fraction form
    20,323.56/28,050.12 = 11,829.96/x
  3. Step 3: Cross multiply
    20,323.56x = 28,050.12 × 11,829.96
  4. Step 4: Simplify right side
    20,323.56x = 331,831,797.60
  5. Step 5: Solve for x
    x = 331,831,797.60/20,323.56
  6. Step 6: Final answer
    x = 16,327.44

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.