Home / 20,290.77-27,949.19-14,311.94

Finding the Fourth Proportional to 20,290.77, 27,949.19 and 14,311.94

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Solution

The fourth proportional to 20,290.77, 27,949.19 and 14,311.94 is: 19,713.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,290.77 : 27,949.19 = 14,311.94 : x
  2. Step 2: Convert to fraction form
    20,290.77/27,949.19 = 14,311.94/x
  3. Step 3: Cross multiply
    20,290.77x = 27,949.19 × 14,311.94
  4. Step 4: Simplify right side
    20,290.77x = 400,006,919.02
  5. Step 5: Solve for x
    x = 400,006,919.02/20,290.77
  6. Step 6: Final answer
    x = 19,713.74

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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.