Home / 19,995.43-30,003.32-12,116.77

Finding the Fourth Proportional to 19,995.43, 30,003.32 and 12,116.77

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Solution

The fourth proportional to 19,995.43, 30,003.32 and 12,116.77 is: 18,181.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,995.43 : 30,003.32 = 12,116.77 : x
  2. Step 2: Convert to fraction form
    19,995.43/30,003.32 = 12,116.77/x
  3. Step 3: Cross multiply
    19,995.43x = 30,003.32 × 12,116.77
  4. Step 4: Simplify right side
    19,995.43x = 363,543,327.68
  5. Step 5: Solve for x
    x = 363,543,327.68/19,995.43
  6. Step 6: Final answer
    x = 18,181.32

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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.