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Finding the Fourth Proportional to 28,814, 43,221 and 9,358

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Solution

The fourth proportional to 28,814, 43,221 and 9,358 is: 14,037

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,814 : 43,221 = 9,358 : x
  2. Step 2: Convert to fraction form
    28,814/43,221 = 9,358/x
  3. Step 3: Cross multiply
    28,814x = 43,221 × 9,358
  4. Step 4: Simplify right side
    28,814x = 404,462,118
  5. Step 5: Solve for x
    x = 404,462,118/28,814
  6. Step 6: Final answer
    x = 14,037

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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.