Home / 40,676.40-61,001.64-20,952.36

Finding the Fourth Proportional to 40,676.40, 61,001.64 and 20,952.36

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Solution

The fourth proportional to 40,676.40, 61,001.64 and 20,952.36 is: 31,421.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,676.40 : 61,001.64 = 20,952.36 : x
  2. Step 2: Convert to fraction form
    40,676.40/61,001.64 = 20,952.36/x
  3. Step 3: Cross multiply
    40,676.40x = 61,001.64 × 20,952.36
  4. Step 4: Simplify right side
    40,676.40x = 1,278,128,321.87
  5. Step 5: Solve for x
    x = 1,278,128,321.87/40,676.40
  6. Step 6: Final answer
    x = 31,421.86

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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.