Home / 31,013.92-46,512.64-13,479.64

Finding the Fourth Proportional to 31,013.92, 46,512.64 and 13,479.64

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Solution

The fourth proportional to 31,013.92, 46,512.64 and 13,479.64 is: 20,215.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,013.92 : 46,512.64 = 13,479.64 : x
  2. Step 2: Convert to fraction form
    31,013.92/46,512.64 = 13,479.64/x
  3. Step 3: Cross multiply
    31,013.92x = 46,512.64 × 13,479.64
  4. Step 4: Simplify right side
    31,013.92x = 626,973,642.65
  5. Step 5: Solve for x
    x = 626,973,642.65/31,013.92
  6. Step 6: Final answer
    x = 20,215.88

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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.