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Finding the Fourth Proportional to 28,306, 42,459 and 8,850

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Solution

The fourth proportional to 28,306, 42,459 and 8,850 is: 13,275

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,306 : 42,459 = 8,850 : x
  2. Step 2: Convert to fraction form
    28,306/42,459 = 8,850/x
  3. Step 3: Cross multiply
    28,306x = 42,459 × 8,850
  4. Step 4: Simplify right side
    28,306x = 375,762,150
  5. Step 5: Solve for x
    x = 375,762,150/28,306
  6. Step 6: Final answer
    x = 13,275

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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.