Home / 20,311.35-30,332.07-20,091.43

Finding the Fourth Proportional to 20,311.35, 30,332.07 and 20,091.43

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Solution

The fourth proportional to 20,311.35, 30,332.07 and 20,091.43 is: 30,003.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,311.35 : 30,332.07 = 20,091.43 : x
  2. Step 2: Convert to fraction form
    20,311.35/30,332.07 = 20,091.43/x
  3. Step 3: Cross multiply
    20,311.35x = 30,332.07 × 20,091.43
  4. Step 4: Simplify right side
    20,311.35x = 609,414,699.62
  5. Step 5: Solve for x
    x = 609,414,699.62/20,311.35
  6. Step 6: Final answer
    x = 30,003.65

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.