Home / 20,523.27-30,842.63-12,204.78

Finding the Fourth Proportional to 20,523.27, 30,842.63 and 12,204.78

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Solution

The fourth proportional to 20,523.27, 30,842.63 and 12,204.78 is: 18,341.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,523.27 : 30,842.63 = 12,204.78 : x
  2. Step 2: Convert to fraction form
    20,523.27/30,842.63 = 12,204.78/x
  3. Step 3: Cross multiply
    20,523.27x = 30,842.63 × 12,204.78
  4. Step 4: Simplify right side
    20,523.27x = 376,427,452.75
  5. Step 5: Solve for x
    x = 376,427,452.75/20,523.27
  6. Step 6: Final answer
    x = 18,341.49

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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.