Home / 21,779.44-30,053.49-12,217.12

Finding the Fourth Proportional to 21,779.44, 30,053.49 and 12,217.12

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Solution

The fourth proportional to 21,779.44, 30,053.49 and 12,217.12 is: 16,858.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,779.44 : 30,053.49 = 12,217.12 : x
  2. Step 2: Convert to fraction form
    21,779.44/30,053.49 = 12,217.12/x
  3. Step 3: Cross multiply
    21,779.44x = 30,053.49 × 12,217.12
  4. Step 4: Simplify right side
    21,779.44x = 367,167,093.75
  5. Step 5: Solve for x
    x = 367,167,093.75/21,779.44
  6. Step 6: Final answer
    x = 16,858.43

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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.