Home / 47,425.87-71,138.81-12,365.43

Finding the Fourth Proportional to 47,425.87, 71,138.81 and 12,365.43

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Solution

The fourth proportional to 47,425.87, 71,138.81 and 12,365.43 is: 18,548.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,425.87 : 71,138.81 = 12,365.43 : x
  2. Step 2: Convert to fraction form
    47,425.87/71,138.81 = 12,365.43/x
  3. Step 3: Cross multiply
    47,425.87x = 71,138.81 × 12,365.43
  4. Step 4: Simplify right side
    47,425.87x = 879,661,975.34
  5. Step 5: Solve for x
    x = 879,661,975.34/47,425.87
  6. Step 6: Final answer
    x = 18,548.15

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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.