Home / 34,550.21-47,691.60-20,403.11

Finding the Fourth Proportional to 34,550.21, 47,691.60 and 20,403.11

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Solution

The fourth proportional to 34,550.21, 47,691.60 and 20,403.11 is: 28,163.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,550.21 : 47,691.60 = 20,403.11 : x
  2. Step 2: Convert to fraction form
    34,550.21/47,691.60 = 20,403.11/x
  3. Step 3: Cross multiply
    34,550.21x = 47,691.60 × 20,403.11
  4. Step 4: Simplify right side
    34,550.21x = 973,056,960.88
  5. Step 5: Solve for x
    x = 973,056,960.88/34,550.21
  6. Step 6: Final answer
    x = 28,163.56

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.