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Finding the Fourth Proportional to 19,234.78, 28,800.02 and 9,981.34

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Solution

The fourth proportional to 19,234.78, 28,800.02 and 9,981.34 is: 14,944.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,234.78 : 28,800.02 = 9,981.34 : x
  2. Step 2: Convert to fraction form
    19,234.78/28,800.02 = 9,981.34/x
  3. Step 3: Cross multiply
    19,234.78x = 28,800.02 × 9,981.34
  4. Step 4: Simplify right side
    19,234.78x = 287,462,791.63
  5. Step 5: Solve for x
    x = 287,462,791.63/19,234.78
  6. Step 6: Final answer
    x = 14,944.95

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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.