Home / 31,162.15-46,743.30-12,443.71

Finding the Fourth Proportional to 31,162.15, 46,743.30 and 12,443.71

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Solution

The fourth proportional to 31,162.15, 46,743.30 and 12,443.71 is: 18,665.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,162.15 : 46,743.30 = 12,443.71 : x
  2. Step 2: Convert to fraction form
    31,162.15/46,743.30 = 12,443.71/x
  3. Step 3: Cross multiply
    31,162.15x = 46,743.30 × 12,443.71
  4. Step 4: Simplify right side
    31,162.15x = 581,660,069.64
  5. Step 5: Solve for x
    x = 581,660,069.64/31,162.15
  6. Step 6: Final answer
    x = 18,665.59

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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.