Home / 31,161.52-46,742.36-12,443.09

Finding the Fourth Proportional to 31,161.52, 46,742.36 and 12,443.09

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Solution

The fourth proportional to 31,161.52, 46,742.36 and 12,443.09 is: 18,664.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,161.52 : 46,742.36 = 12,443.09 : x
  2. Step 2: Convert to fraction form
    31,161.52/46,742.36 = 12,443.09/x
  3. Step 3: Cross multiply
    31,161.52x = 46,742.36 × 12,443.09
  4. Step 4: Simplify right side
    31,161.52x = 581,619,096.37
  5. Step 5: Solve for x
    x = 581,619,096.37/31,161.52
  6. Step 6: Final answer
    x = 18,664.66

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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.