Home / 26,140.82-39,211.36-6,419.39

Finding the Fourth Proportional to 26,140.82, 39,211.36 and 6,419.39

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Solution

The fourth proportional to 26,140.82, 39,211.36 and 6,419.39 is: 9,629.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,140.82 : 39,211.36 = 6,419.39 : x
  2. Step 2: Convert to fraction form
    26,140.82/39,211.36 = 6,419.39/x
  3. Step 3: Cross multiply
    26,140.82x = 39,211.36 × 6,419.39
  4. Step 4: Simplify right side
    26,140.82x = 251,712,836.27
  5. Step 5: Solve for x
    x = 251,712,836.27/26,140.82
  6. Step 6: Final answer
    x = 9,629.11

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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.