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Finding the Fourth Proportional to 16,228.60, 24,342.90 and 12,729.40

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Solution

The fourth proportional to 16,228.60, 24,342.90 and 12,729.40 is: 19,094.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,228.60 : 24,342.90 = 12,729.40 : x
  2. Step 2: Convert to fraction form
    16,228.60/24,342.90 = 12,729.40/x
  3. Step 3: Cross multiply
    16,228.60x = 24,342.90 × 12,729.40
  4. Step 4: Simplify right side
    16,228.60x = 309,870,511.26
  5. Step 5: Solve for x
    x = 309,870,511.26/16,228.60
  6. Step 6: Final answer
    x = 19,094.10

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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.