Home / 31,243-43,120.46-18,002.68

Finding the Fourth Proportional to 31,243, 43,120.46 and 18,002.68

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Solution

The fourth proportional to 31,243, 43,120.46 and 18,002.68 is: 24,846.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,243 : 43,120.46 = 18,002.68 : x
  2. Step 2: Convert to fraction form
    31,243/43,120.46 = 18,002.68/x
  3. Step 3: Cross multiply
    31,243x = 43,120.46 × 18,002.68
  4. Step 4: Simplify right side
    31,243x = 776,283,842.83
  5. Step 5: Solve for x
    x = 776,283,842.83/31,243
  6. Step 6: Final answer
    x = 24,846.65

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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.