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Finding the Fourth Proportional to 19,361, 26,718.20 and 10,529

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Solution

The fourth proportional to 19,361, 26,718.20 and 10,529 is: 14,530.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,361 : 26,718.20 = 10,529 : x
  2. Step 2: Convert to fraction form
    19,361/26,718.20 = 10,529/x
  3. Step 3: Cross multiply
    19,361x = 26,718.20 × 10,529
  4. Step 4: Simplify right side
    19,361x = 281,315,927.80
  5. Step 5: Solve for x
    x = 281,315,927.80/19,361
  6. Step 6: Final answer
    x = 14,530.03

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.