Home / 43,636.86-65,455.34-12,472.11

Finding the Fourth Proportional to 43,636.86, 65,455.34 and 12,472.11

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Solution

The fourth proportional to 43,636.86, 65,455.34 and 12,472.11 is: 18,708.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,636.86 : 65,455.34 = 12,472.11 : x
  2. Step 2: Convert to fraction form
    43,636.86/65,455.34 = 12,472.11/x
  3. Step 3: Cross multiply
    43,636.86x = 65,455.34 × 12,472.11
  4. Step 4: Simplify right side
    43,636.86x = 816,366,138.21
  5. Step 5: Solve for x
    x = 816,366,138.21/43,636.86
  6. Step 6: Final answer
    x = 18,708.18

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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.