Home / 40,705.88-61,076.28-20,998.27

Finding the Fourth Proportional to 40,705.88, 61,076.28 and 20,998.27

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Solution

The fourth proportional to 40,705.88, 61,076.28 and 20,998.27 is: 31,506.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,705.88 : 61,076.28 = 20,998.27 : x
  2. Step 2: Convert to fraction form
    40,705.88/61,076.28 = 20,998.27/x
  3. Step 3: Cross multiply
    40,705.88x = 61,076.28 × 20,998.27
  4. Step 4: Simplify right side
    40,705.88x = 1,282,496,255.01
  5. Step 5: Solve for x
    x = 1,282,496,255.01/40,705.88
  6. Step 6: Final answer
    x = 31,506.42

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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.