Home / 20,886.94-31,291.17-10,344.70

Finding the Fourth Proportional to 20,886.94, 31,291.17 and 10,344.70

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Solution

The fourth proportional to 20,886.94, 31,291.17 and 10,344.70 is: 15,497.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,886.94 : 31,291.17 = 10,344.70 : x
  2. Step 2: Convert to fraction form
    20,886.94/31,291.17 = 10,344.70/x
  3. Step 3: Cross multiply
    20,886.94x = 31,291.17 × 10,344.70
  4. Step 4: Simplify right side
    20,886.94x = 323,697,766.30
  5. Step 5: Solve for x
    x = 323,697,766.30/20,886.94
  6. Step 6: Final answer
    x = 15,497.62

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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.