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Finding the Fourth Proportional to 21,745.78, 32,625.00 and 9,101.51

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Solution

The fourth proportional to 21,745.78, 32,625.00 and 9,101.51 is: 13,654.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,745.78 : 32,625.00 = 9,101.51 : x
  2. Step 2: Convert to fraction form
    21,745.78/32,625.00 = 9,101.51/x
  3. Step 3: Cross multiply
    21,745.78x = 32,625.00 × 9,101.51
  4. Step 4: Simplify right side
    21,745.78x = 296,936,577.87
  5. Step 5: Solve for x
    x = 296,936,577.87/21,745.78
  6. Step 6: Final answer
    x = 13,654.90

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1.5x scale

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.