Home / 20,039.25-30,058.71-8,190.48

Finding the Fourth Proportional to 20,039.25, 30,058.71 and 8,190.48

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Solution

The fourth proportional to 20,039.25, 30,058.71 and 8,190.48 is: 12,285.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,039.25 : 30,058.71 = 8,190.48 : x
  2. Step 2: Convert to fraction form
    20,039.25/30,058.71 = 8,190.48/x
  3. Step 3: Cross multiply
    20,039.25x = 30,058.71 × 8,190.48
  4. Step 4: Simplify right side
    20,039.25x = 246,195,263.08
  5. Step 5: Solve for x
    x = 246,195,263.08/20,039.25
  6. Step 6: Final answer
    x = 12,285.65

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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.