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Finding the Fourth Proportional to 16,813.60, 25,220.40 and 14,999.20

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Solution

The fourth proportional to 16,813.60, 25,220.40 and 14,999.20 is: 22,498.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,813.60 : 25,220.40 = 14,999.20 : x
  2. Step 2: Convert to fraction form
    16,813.60/25,220.40 = 14,999.20/x
  3. Step 3: Cross multiply
    16,813.60x = 25,220.40 × 14,999.20
  4. Step 4: Simplify right side
    16,813.60x = 378,285,823.68
  5. Step 5: Solve for x
    x = 378,285,823.68/16,813.60
  6. Step 6: Final answer
    x = 22,498.80

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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.