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Finding the Fourth Proportional to 31,143.20, 46,714.80 and 22,395.20

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Solution

The fourth proportional to 31,143.20, 46,714.80 and 22,395.20 is: 33,592.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,143.20 : 46,714.80 = 22,395.20 : x
  2. Step 2: Convert to fraction form
    31,143.20/46,714.80 = 22,395.20/x
  3. Step 3: Cross multiply
    31,143.20x = 46,714.80 × 22,395.20
  4. Step 4: Simplify right side
    31,143.20x = 1,046,187,288.96
  5. Step 5: Solve for x
    x = 1,046,187,288.96/31,143.20
  6. Step 6: Final answer
    x = 33,592.80

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.