Home / 31,149.86-46,725.80-8,964.36

Finding the Fourth Proportional to 31,149.86, 46,725.80 and 8,964.36

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Solution

The fourth proportional to 31,149.86, 46,725.80 and 8,964.36 is: 13,446.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,149.86 : 46,725.80 = 8,964.36 : x
  2. Step 2: Convert to fraction form
    31,149.86/46,725.80 = 8,964.36/x
  3. Step 3: Cross multiply
    31,149.86x = 46,725.80 × 8,964.36
  4. Step 4: Simplify right side
    31,149.86x = 418,866,847.67
  5. Step 5: Solve for x
    x = 418,866,847.67/31,149.86
  6. Step 6: Final answer
    x = 13,446.83

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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.