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Finding the Fourth Proportional to 43,388, 65,082 and 10,556

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Solution

The fourth proportional to 43,388, 65,082 and 10,556 is: 15,834

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,388 : 65,082 = 10,556 : x
  2. Step 2: Convert to fraction form
    43,388/65,082 = 10,556/x
  3. Step 3: Cross multiply
    43,388x = 65,082 × 10,556
  4. Step 4: Simplify right side
    43,388x = 687,005,592
  5. Step 5: Solve for x
    x = 687,005,592/43,388
  6. Step 6: Final answer
    x = 15,834

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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.