Home / 20,036.82-30,053.67-8,187.43

Finding the Fourth Proportional to 20,036.82, 30,053.67 and 8,187.43

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Solution

The fourth proportional to 20,036.82, 30,053.67 and 8,187.43 is: 12,280.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,036.82 : 30,053.67 = 8,187.43 : x
  2. Step 2: Convert to fraction form
    20,036.82/30,053.67 = 8,187.43/x
  3. Step 3: Cross multiply
    20,036.82x = 30,053.67 × 8,187.43
  4. Step 4: Simplify right side
    20,036.82x = 246,062,319.37
  5. Step 5: Solve for x
    x = 246,062,319.37/20,036.82
  6. Step 6: Final answer
    x = 12,280.51

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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.