Home / 31,219.11-46,804.32-21,197.43

Finding the Fourth Proportional to 31,219.11, 46,804.32 and 21,197.43

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Solution

The fourth proportional to 31,219.11, 46,804.32 and 21,197.43 is: 31,779.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,219.11 : 46,804.32 = 21,197.43 : x
  2. Step 2: Convert to fraction form
    31,219.11/46,804.32 = 21,197.43/x
  3. Step 3: Cross multiply
    31,219.11x = 46,804.32 × 21,197.43
  4. Step 4: Simplify right side
    31,219.11x = 992,131,296.90
  5. Step 5: Solve for x
    x = 992,131,296.90/31,219.11
  6. Step 6: Final answer
    x = 31,779.62

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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.