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Finding the Fourth Proportional to 19,344.80, 28,930.80 and 16,234.40

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Solution

The fourth proportional to 19,344.80, 28,930.80 and 16,234.40 is: 24,279.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,344.80 : 28,930.80 = 16,234.40 : x
  2. Step 2: Convert to fraction form
    19,344.80/28,930.80 = 16,234.40/x
  3. Step 3: Cross multiply
    19,344.80x = 28,930.80 × 16,234.40
  4. Step 4: Simplify right side
    19,344.80x = 469,674,179.52
  5. Step 5: Solve for x
    x = 469,674,179.52/19,344.80
  6. Step 6: Final answer
    x = 24,279.09

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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.