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Finding the Fourth Proportional to 22,678.34, 34,007.87 and 8,630.51

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Solution

The fourth proportional to 22,678.34, 34,007.87 and 8,630.51 is: 12,942.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,678.34 : 34,007.87 = 8,630.51 : x
  2. Step 2: Convert to fraction form
    22,678.34/34,007.87 = 8,630.51/x
  3. Step 3: Cross multiply
    22,678.34x = 34,007.87 × 8,630.51
  4. Step 4: Simplify right side
    22,678.34x = 293,505,048.92
  5. Step 5: Solve for x
    x = 293,505,048.92/22,678.34
  6. Step 6: Final answer
    x = 12,942.09

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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.