Home / 20,712.10-31,046.27-14,865.54

Finding the Fourth Proportional to 20,712.10, 31,046.27 and 14,865.54

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Solution

The fourth proportional to 20,712.10, 31,046.27 and 14,865.54 is: 22,282.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,712.10 : 31,046.27 = 14,865.54 : x
  2. Step 2: Convert to fraction form
    20,712.10/31,046.27 = 14,865.54/x
  3. Step 3: Cross multiply
    20,712.10x = 31,046.27 × 14,865.54
  4. Step 4: Simplify right side
    20,712.10x = 461,519,568.54
  5. Step 5: Solve for x
    x = 461,519,568.54/20,712.10
  6. Step 6: Final answer
    x = 22,282.61

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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.