Home / 21,166-31,745.37-9,922.48

Finding the Fourth Proportional to 21,166, 31,745.37 and 9,922.48

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Solution

The fourth proportional to 21,166, 31,745.37 and 9,922.48 is: 14,882.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,166 : 31,745.37 = 9,922.48 : x
  2. Step 2: Convert to fraction form
    21,166/31,745.37 = 9,922.48/x
  3. Step 3: Cross multiply
    21,166x = 31,745.37 × 9,922.48
  4. Step 4: Simplify right side
    21,166x = 314,992,798.92
  5. Step 5: Solve for x
    x = 314,992,798.92/21,166
  6. Step 6: Final answer
    x = 14,882.02

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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.