Home / 21,950.75-30,288.77-13,332.44

Finding the Fourth Proportional to 21,950.75, 30,288.77 and 13,332.44

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Solution

The fourth proportional to 21,950.75, 30,288.77 and 13,332.44 is: 18,396.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,950.75 : 30,288.77 = 13,332.44 : x
  2. Step 2: Convert to fraction form
    21,950.75/30,288.77 = 13,332.44/x
  3. Step 3: Cross multiply
    21,950.75x = 30,288.77 × 13,332.44
  4. Step 4: Simplify right side
    21,950.75x = 403,823,251.09
  5. Step 5: Solve for x
    x = 403,823,251.09/21,950.75
  6. Step 6: Final answer
    x = 18,396.79

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.