Home / 21,073.11-31,609.67-6,292.41

Finding the Fourth Proportional to 21,073.11, 31,609.67 and 6,292.41

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Solution

The fourth proportional to 21,073.11, 31,609.67 and 6,292.41 is: 9,438.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,073.11 : 31,609.67 = 6,292.41 : x
  2. Step 2: Convert to fraction form
    21,073.11/31,609.67 = 6,292.41/x
  3. Step 3: Cross multiply
    21,073.11x = 31,609.67 × 6,292.41
  4. Step 4: Simplify right side
    21,073.11x = 198,900,960.21
  5. Step 5: Solve for x
    x = 198,900,960.21/21,073.11
  6. Step 6: Final answer
    x = 9,438.61

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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.