Home / 47,530.21-71,289.82-12,472.60

Finding the Fourth Proportional to 47,530.21, 71,289.82 and 12,472.60

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Solution

The fourth proportional to 47,530.21, 71,289.82 and 12,472.60 is: 18,707.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,530.21 : 71,289.82 = 12,472.60 : x
  2. Step 2: Convert to fraction form
    47,530.21/71,289.82 = 12,472.60/x
  3. Step 3: Cross multiply
    47,530.21x = 71,289.82 × 12,472.60
  4. Step 4: Simplify right side
    47,530.21x = 889,169,408.93
  5. Step 5: Solve for x
    x = 889,169,408.93/47,530.21
  6. Step 6: Final answer
    x = 18,707.46

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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.