Home / 20,888.97-28,826.38-11,814.17

Finding the Fourth Proportional to 20,888.97, 28,826.38 and 11,814.17

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Solution

The fourth proportional to 20,888.97, 28,826.38 and 11,814.17 is: 16,303.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,888.97 : 28,826.38 = 11,814.17 : x
  2. Step 2: Convert to fraction form
    20,888.97/28,826.38 = 11,814.17/x
  3. Step 3: Cross multiply
    20,888.97x = 28,826.38 × 11,814.17
  4. Step 4: Simplify right side
    20,888.97x = 340,559,786.59
  5. Step 5: Solve for x
    x = 340,559,786.59/20,888.97
  6. Step 6: Final answer
    x = 16,303.33

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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.