Home / 21,163.31-31,745.23-14,587.73

Finding the Fourth Proportional to 21,163.31, 31,745.23 and 14,587.73

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Solution

The fourth proportional to 21,163.31, 31,745.23 and 14,587.73 is: 21,881.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,163.31 : 31,745.23 = 14,587.73 : x
  2. Step 2: Convert to fraction form
    21,163.31/31,745.23 = 14,587.73/x
  3. Step 3: Cross multiply
    21,163.31x = 31,745.23 × 14,587.73
  4. Step 4: Simplify right side
    21,163.31x = 463,090,685.30
  5. Step 5: Solve for x
    x = 463,090,685.30/21,163.31
  6. Step 6: Final answer
    x = 21,881.78

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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.