Home / 21,269.17-31,894.50-6,474.62

Finding the Fourth Proportional to 21,269.17, 31,894.50 and 6,474.62

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Solution

The fourth proportional to 21,269.17, 31,894.50 and 6,474.62 is: 9,709.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,269.17 : 31,894.50 = 6,474.62 : x
  2. Step 2: Convert to fraction form
    21,269.17/31,894.50 = 6,474.62/x
  3. Step 3: Cross multiply
    21,269.17x = 31,894.50 × 6,474.62
  4. Step 4: Simplify right side
    21,269.17x = 206,504,655.48
  5. Step 5: Solve for x
    x = 206,504,655.48/21,269.17
  6. Step 6: Final answer
    x = 9,709.11

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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.