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Finding the Fourth Proportional to 16,219.60, 24,329.40 and 12,072.40

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Solution

The fourth proportional to 16,219.60, 24,329.40 and 12,072.40 is: 18,108.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,219.60 : 24,329.40 = 12,072.40 : x
  2. Step 2: Convert to fraction form
    16,219.60/24,329.40 = 12,072.40/x
  3. Step 3: Cross multiply
    16,219.60x = 24,329.40 × 12,072.40
  4. Step 4: Simplify right side
    16,219.60x = 293,714,248.56
  5. Step 5: Solve for x
    x = 293,714,248.56/16,219.60
  6. Step 6: Final answer
    x = 18,108.60

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1.5x scale

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.