Home / 21,930.26-30,263.74-11,858.68

Finding the Fourth Proportional to 21,930.26, 30,263.74 and 11,858.68

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Solution

The fourth proportional to 21,930.26, 30,263.74 and 11,858.68 is: 16,364.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,930.26 : 30,263.74 = 11,858.68 : x
  2. Step 2: Convert to fraction form
    21,930.26/30,263.74 = 11,858.68/x
  3. Step 3: Cross multiply
    21,930.26x = 30,263.74 × 11,858.68
  4. Step 4: Simplify right side
    21,930.26x = 358,888,008.26
  5. Step 5: Solve for x
    x = 358,888,008.26/21,930.26
  6. Step 6: Final answer
    x = 16,364.97

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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.