Home / 31,880.18-43,994-17,732.72

Finding the Fourth Proportional to 31,880.18, 43,994 and 17,732.72

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Solution

The fourth proportional to 31,880.18, 43,994 and 17,732.72 is: 24,470.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,880.18 : 43,994 = 17,732.72 : x
  2. Step 2: Convert to fraction form
    31,880.18/43,994 = 17,732.72/x
  3. Step 3: Cross multiply
    31,880.18x = 43,994 × 17,732.72
  4. Step 4: Simplify right side
    31,880.18x = 780,133,283.68
  5. Step 5: Solve for x
    x = 780,133,283.68/31,880.18
  6. Step 6: Final answer
    x = 24,470.79

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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.