Home / 26,455.88-39,669.78-11,647.64

Finding the Fourth Proportional to 26,455.88, 39,669.78 and 11,647.64

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Solution

The fourth proportional to 26,455.88, 39,669.78 and 11,647.64 is: 17,465.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,455.88 : 39,669.78 = 11,647.64 : x
  2. Step 2: Convert to fraction form
    26,455.88/39,669.78 = 11,647.64/x
  3. Step 3: Cross multiply
    26,455.88x = 39,669.78 × 11,647.64
  4. Step 4: Simplify right side
    26,455.88x = 462,059,316.32
  5. Step 5: Solve for x
    x = 462,059,316.32/26,455.88
  6. Step 6: Final answer
    x = 17,465.28

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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.