Home / 31,980.68-47,943.66-12,273.38

Finding the Fourth Proportional to 31,980.68, 47,943.66 and 12,273.38

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Solution

The fourth proportional to 31,980.68, 47,943.66 and 12,273.38 is: 18,399.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,980.68 : 47,943.66 = 12,273.38 : x
  2. Step 2: Convert to fraction form
    31,980.68/47,943.66 = 12,273.38/x
  3. Step 3: Cross multiply
    31,980.68x = 47,943.66 × 12,273.38
  4. Step 4: Simplify right side
    31,980.68x = 588,430,757.77
  5. Step 5: Solve for x
    x = 588,430,757.77/31,980.68
  6. Step 6: Final answer
    x = 18,399.57

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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.