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Finding the Fourth Proportional to 16,674.80, 25,012.20 and 15,407.60

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Solution

The fourth proportional to 16,674.80, 25,012.20 and 15,407.60 is: 23,111.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,674.80 : 25,012.20 = 15,407.60 : x
  2. Step 2: Convert to fraction form
    16,674.80/25,012.20 = 15,407.60/x
  3. Step 3: Cross multiply
    16,674.80x = 25,012.20 × 15,407.60
  4. Step 4: Simplify right side
    16,674.80x = 385,377,972.72
  5. Step 5: Solve for x
    x = 385,377,972.72/16,674.80
  6. Step 6: Final answer
    x = 23,111.40

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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.