Home / 31,534.64-47,305.20-18,222.56

Finding the Fourth Proportional to 31,534.64, 47,305.20 and 18,222.56

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Solution

The fourth proportional to 31,534.64, 47,305.20 and 18,222.56 is: 27,335.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,534.64 : 47,305.20 = 18,222.56 : x
  2. Step 2: Convert to fraction form
    31,534.64/47,305.20 = 18,222.56/x
  3. Step 3: Cross multiply
    31,534.64x = 47,305.20 × 18,222.56
  4. Step 4: Simplify right side
    31,534.64x = 862,021,608.79
  5. Step 5: Solve for x
    x = 862,021,608.79/31,534.64
  6. Step 6: Final answer
    x = 27,335.71

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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.