Home / 21,965.27-30,325.85-16,919.97

Finding the Fourth Proportional to 21,965.27, 30,325.85 and 16,919.97

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Solution

The fourth proportional to 21,965.27, 30,325.85 and 16,919.97 is: 23,360.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,965.27 : 30,325.85 = 16,919.97 : x
  2. Step 2: Convert to fraction form
    21,965.27/30,325.85 = 16,919.97/x
  3. Step 3: Cross multiply
    21,965.27x = 30,325.85 × 16,919.97
  4. Step 4: Simplify right side
    21,965.27x = 513,112,387.62
  5. Step 5: Solve for x
    x = 513,112,387.62/21,965.27
  6. Step 6: Final answer
    x = 23,360.17

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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.