Home / 31,291.38-46,874.54-18,804.65

Finding the Fourth Proportional to 31,291.38, 46,874.54 and 18,804.65

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Solution

The fourth proportional to 31,291.38, 46,874.54 and 18,804.65 is: 28,169.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,291.38 : 46,874.54 = 18,804.65 : x
  2. Step 2: Convert to fraction form
    31,291.38/46,874.54 = 18,804.65/x
  3. Step 3: Cross multiply
    31,291.38x = 46,874.54 × 18,804.65
  4. Step 4: Simplify right side
    31,291.38x = 881,459,131.25
  5. Step 5: Solve for x
    x = 881,459,131.25/31,291.38
  6. Step 6: Final answer
    x = 28,169.39

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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.