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Finding the Fourth Proportional to 30,226, 45,341.56 and 8,338

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Solution

The fourth proportional to 30,226, 45,341.56 and 8,338 is: 12,507.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,226 : 45,341.56 = 8,338 : x
  2. Step 2: Convert to fraction form
    30,226/45,341.56 = 8,338/x
  3. Step 3: Cross multiply
    30,226x = 45,341.56 × 8,338
  4. Step 4: Simplify right side
    30,226x = 378,057,927.28
  5. Step 5: Solve for x
    x = 378,057,927.28/30,226
  6. Step 6: Final answer
    x = 12,507.71

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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.