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Finding the Fourth Proportional to 16,019.60, 23,998.80 and 8,621.60

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Solution

The fourth proportional to 16,019.60, 23,998.80 and 8,621.60 is: 12,915.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,019.60 : 23,998.80 = 8,621.60 : x
  2. Step 2: Convert to fraction form
    16,019.60/23,998.80 = 8,621.60/x
  3. Step 3: Cross multiply
    16,019.60x = 23,998.80 × 8,621.60
  4. Step 4: Simplify right side
    16,019.60x = 206,908,054.08
  5. Step 5: Solve for x
    x = 206,908,054.08/16,019.60
  6. Step 6: Final answer
    x = 12,915.93

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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.