Home / 31,811.13-43,901.18-17,664.88

Finding the Fourth Proportional to 31,811.13, 43,901.18 and 17,664.88

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Solution

The fourth proportional to 31,811.13, 43,901.18 and 17,664.88 is: 24,378.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,811.13 : 43,901.18 = 17,664.88 : x
  2. Step 2: Convert to fraction form
    31,811.13/43,901.18 = 17,664.88/x
  3. Step 3: Cross multiply
    31,811.13x = 43,901.18 × 17,664.88
  4. Step 4: Simplify right side
    31,811.13x = 775,509,076.56
  5. Step 5: Solve for x
    x = 775,509,076.56/31,811.13
  6. Step 6: Final answer
    x = 24,378.55

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.