Home / 31,161.15-46,741.80-12,442.71

Finding the Fourth Proportional to 31,161.15, 46,741.80 and 12,442.71

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Solution

The fourth proportional to 31,161.15, 46,741.80 and 12,442.71 is: 18,664.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,161.15 : 46,741.80 = 12,442.71 : x
  2. Step 2: Convert to fraction form
    31,161.15/46,741.80 = 12,442.71/x
  3. Step 3: Cross multiply
    31,161.15x = 46,741.80 × 12,442.71
  4. Step 4: Simplify right side
    31,161.15x = 581,594,440.34
  5. Step 5: Solve for x
    x = 581,594,440.34/31,161.15
  6. Step 6: Final answer
    x = 18,664.09

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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.