Home / 20,228.82-30,342.93-12,333.66

Finding the Fourth Proportional to 20,228.82, 30,342.93 and 12,333.66

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Solution

The fourth proportional to 20,228.82, 30,342.93 and 12,333.66 is: 18,500.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,228.82 : 30,342.93 = 12,333.66 : x
  2. Step 2: Convert to fraction form
    20,228.82/30,342.93 = 12,333.66/x
  3. Step 3: Cross multiply
    20,228.82x = 30,342.93 × 12,333.66
  4. Step 4: Simplify right side
    20,228.82x = 374,239,382.02
  5. Step 5: Solve for x
    x = 374,239,382.02/20,228.82
  6. Step 6: Final answer
    x = 18,500.31

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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.