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Finding the Fourth Proportional to 26,187, 39,239.40 and 10,383.48

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Solution

The fourth proportional to 26,187, 39,239.40 and 10,383.48 is: 15,558.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,187 : 39,239.40 = 10,383.48 : x
  2. Step 2: Convert to fraction form
    26,187/39,239.40 = 10,383.48/x
  3. Step 3: Cross multiply
    26,187x = 39,239.40 × 10,383.48
  4. Step 4: Simplify right side
    26,187x = 407,441,525.11
  5. Step 5: Solve for x
    x = 407,441,525.11/26,187
  6. Step 6: Final answer
    x = 15,558.92

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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.