Home / 20,219.38-30,295.52-12,297.92

Finding the Fourth Proportional to 20,219.38, 30,295.52 and 12,297.92

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Solution

The fourth proportional to 20,219.38, 30,295.52 and 12,297.92 is: 18,426.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,219.38 : 30,295.52 = 12,297.92 : x
  2. Step 2: Convert to fraction form
    20,219.38/30,295.52 = 12,297.92/x
  3. Step 3: Cross multiply
    20,219.38x = 30,295.52 × 12,297.92
  4. Step 4: Simplify right side
    20,219.38x = 372,571,881.32
  5. Step 5: Solve for x
    x = 372,571,881.32/20,219.38
  6. Step 6: Final answer
    x = 18,426.48

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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.