Home / 31,262.63-46,913.09-12,540.69

Finding the Fourth Proportional to 31,262.63, 46,913.09 and 12,540.69

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Solution

The fourth proportional to 31,262.63, 46,913.09 and 12,540.69 is: 18,818.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,262.63 : 46,913.09 = 12,540.69 : x
  2. Step 2: Convert to fraction form
    31,262.63/46,913.09 = 12,540.69/x
  3. Step 3: Cross multiply
    31,262.63x = 46,913.09 × 12,540.69
  4. Step 4: Simplify right side
    31,262.63x = 588,322,455.93
  5. Step 5: Solve for x
    x = 588,322,455.93/31,262.63
  6. Step 6: Final answer
    x = 18,818.72

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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.