Home / 31,222.56-46,844.64-18,086.40

Finding the Fourth Proportional to 31,222.56, 46,844.64 and 18,086.40

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Solution

The fourth proportional to 31,222.56, 46,844.64 and 18,086.40 is: 27,135.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,222.56 : 46,844.64 = 18,086.40 : x
  2. Step 2: Convert to fraction form
    31,222.56/46,844.64 = 18,086.40/x
  3. Step 3: Cross multiply
    31,222.56x = 46,844.64 × 18,086.40
  4. Step 4: Simplify right side
    31,222.56x = 847,250,896.90
  5. Step 5: Solve for x
    x = 847,250,896.90/31,222.56
  6. Step 6: Final answer
    x = 27,135.86

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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.