Home / 21,269.34-31,894.20-6,474.96

Finding the Fourth Proportional to 21,269.34, 31,894.20 and 6,474.96

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Solution

The fourth proportional to 21,269.34, 31,894.20 and 6,474.96 is: 9,709.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,269.34 : 31,894.20 = 6,474.96 : x
  2. Step 2: Convert to fraction form
    21,269.34/31,894.20 = 6,474.96/x
  3. Step 3: Cross multiply
    21,269.34x = 31,894.20 × 6,474.96
  4. Step 4: Simplify right side
    21,269.34x = 206,513,669.23
  5. Step 5: Solve for x
    x = 206,513,669.23/21,269.34
  6. Step 6: Final answer
    x = 9,709.45

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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.