Home / 31,943.16-47,923.38-18,101.88

Finding the Fourth Proportional to 31,943.16, 47,923.38 and 18,101.88

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Solution

The fourth proportional to 31,943.16, 47,923.38 and 18,101.88 is: 27,157.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,943.16 : 47,923.38 = 18,101.88 : x
  2. Step 2: Convert to fraction form
    31,943.16/47,923.38 = 18,101.88/x
  3. Step 3: Cross multiply
    31,943.16x = 47,923.38 × 18,101.88
  4. Step 4: Simplify right side
    31,943.16x = 867,503,273.95
  5. Step 5: Solve for x
    x = 867,503,273.95/31,943.16
  6. Step 6: Final answer
    x = 27,157.72

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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.