Home / 31,982.05-47,908.28-18,114.85

Finding the Fourth Proportional to 31,982.05, 47,908.28 and 18,114.85

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Solution

The fourth proportional to 31,982.05, 47,908.28 and 18,114.85 is: 27,135.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,982.05 : 47,908.28 = 18,114.85 : x
  2. Step 2: Convert to fraction form
    31,982.05/47,908.28 = 18,114.85/x
  3. Step 3: Cross multiply
    31,982.05x = 47,908.28 × 18,114.85
  4. Step 4: Simplify right side
    31,982.05x = 867,851,215.38
  5. Step 5: Solve for x
    x = 867,851,215.38/31,982.05
  6. Step 6: Final answer
    x = 27,135.57

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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.