Home / 31,214.18-46,821.27-13,687.94

Finding the Fourth Proportional to 31,214.18, 46,821.27 and 13,687.94

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Solution

The fourth proportional to 31,214.18, 46,821.27 and 13,687.94 is: 20,531.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,214.18 : 46,821.27 = 13,687.94 : x
  2. Step 2: Convert to fraction form
    31,214.18/46,821.27 = 13,687.94/x
  3. Step 3: Cross multiply
    31,214.18x = 46,821.27 × 13,687.94
  4. Step 4: Simplify right side
    31,214.18x = 640,886,734.48
  5. Step 5: Solve for x
    x = 640,886,734.48/31,214.18
  6. Step 6: Final answer
    x = 20,531.91

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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.