Home / 31,161.71-46,742.64-12,443.27

Finding the Fourth Proportional to 31,161.71, 46,742.64 and 12,443.27

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Solution

The fourth proportional to 31,161.71, 46,742.64 and 12,443.27 is: 18,664.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,161.71 : 46,742.64 = 12,443.27 : x
  2. Step 2: Convert to fraction form
    31,161.71/46,742.64 = 12,443.27/x
  3. Step 3: Cross multiply
    31,161.71x = 46,742.64 × 12,443.27
  4. Step 4: Simplify right side
    31,161.71x = 581,631,406.89
  5. Step 5: Solve for x
    x = 581,631,406.89/31,161.71
  6. Step 6: Final answer
    x = 18,664.94

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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.