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Finding the Fourth Proportional to 43,567.63, 65,351.43 and 12,402.88

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Solution

The fourth proportional to 43,567.63, 65,351.43 and 12,402.88 is: 18,604.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,567.63 : 65,351.43 = 12,402.88 : x
  2. Step 2: Convert to fraction form
    43,567.63/65,351.43 = 12,402.88/x
  3. Step 3: Cross multiply
    43,567.63x = 65,351.43 × 12,402.88
  4. Step 4: Simplify right side
    43,567.63x = 810,545,780.74
  5. Step 5: Solve for x
    x = 810,545,780.74/43,567.63
  6. Step 6: Final answer
    x = 18,604.31

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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.